Cheesy Hash Brown Breakfast Casserole Recipe (2024)

Breakfast is the most important meal of the day, and this Hash Brown Breakfast Casserole has all the makings of a perfect breakfast! Packed with sausage or bacon, bell peppers, hash browns, and topped with shredded cheese, this casserole has a little bit of everything.

Casseroles are some of my favorite things to make for breakfast because they are quick, easy, and are made all in one dish. They also are great to reheat for breakfast the next morning or a quick and easy leftover dinner. If you have a bigger family, it’s a great way to feed everyone in one swoop.

This hashbrown breakfast casserole is hands down the best casserole I have ever had. The great thing about it is that it’s so versatile, can be made allergy-friendly, and can be prepped the night before to make mornings smooth and effortless.

I am interchangeably using hashbrown and hashbrown because hashbrown is just easier to write and read than hash brown 😉

Cheesy Hash Brown Breakfast Casserole Recipe (1)

Table of Contents

  • 🥘 Ingredients Needed
  • 🍽 Equipment Needed
  • 🥣 How to Make It
  • 🙋‍♀️ Frequently Asked Questions
  • 🍱 Recipe Yield
  • 🥫 Storage/Shelf Life/Reheating
  • ✏️ Helpful Tips
  • Other Tasty Breakfast Recipes
  • Cheesy Hash Brown Breakfast Casserole Recipe

🥘 Ingredients Needed

Cheesy Hash Brown Breakfast Casserole Recipe (2)
  • Olive oil – I like to use extra virgin olive oil. You can also use refined coconut oil, avocado oil, or vegetable oil.
  • Breakfast Sausage – You can also use bacon or both sausage and bacon.
  • Onion – I like to use a sweet yellow onion.
  • Bell pepper – Use red, yellow, or orange and dice it up.
  • Frozen Shredded hash browns – I like to use the Aldi brand for an easy and inexpensive option.
  • Shredded cheese – You can use sharp or regular cheddar – or even pepperjack!
  • Diced green onions or chives
  • Eggs
  • Milk or Cream – I like to use cream as it gives it extra flavor.
  • Pepper – I love using coarsley ground black pepper.
  • Salt – I like to use a mix of kosher salt and seasoning salt.

Jalapeño – This is optional but will need to be seeded and diced.

🍽 Equipment Needed

  • Skillet
  • Baking Sheet
  • Measuring Cups/Spoons

🥣 How to Make It

Prep this recipe the night before to easily throw it in the oven in the morning for a hot breakfast the whole family will love! It’s so easy to make:

  • First, preheat your oven to 375℉.
  • Then, spread your hashbrowns on a baking sheet and roast them in the oven to thaw and crisp up while you cook your sausage and veggies.(Pictures 1 – 2) You might need to stir them once or twice to break up any clumps while they cook.
  • Add ½ tablespoon of oil to your skillet and place it over medium heat. Brown your sausage, breaking it up as it cooks. If you are using baking, cook until crispy, then dice the bacon into bite sized pieces.
  • Next, drain the sausage or bacon and transfer it to a large mixing bowl. Make sure there is no liquid in the skillet if you use sausage, but if you use bacon, you can leave a little bacon grease in the skillet for flavor.
Cheesy Hash Brown Breakfast Casserole Recipe (3)
  • Add another 1 ½ tablespoons of oil to your skillet. Then, saute the onions and bell pepper for about 5 minutes or until softened. Season with salt, seasoning salt, and pepper.(Pictures 3 – 5)
  • From here, there are two options and both work great:
    • 1) Place the veggies in the bowl with the sausage and add the roasted hash browns, ⅔ of the cheese, ⅔ of the green onions, and remaining salt, pepper, and seasoning salt. Gently toss until everything is fully combined. Pour your hash brown, sausage, and veggie mixture into a greased 13 x 9 inch pan or cast iron skillet.Whisk the eggs and milk or cream in a mixing bowl, then pour the egg mixture over the hash brown mixture, pressing the eggs into the hash browns.
    • 2) (Pictured) Combine the hash browns/veggies in the skillet then mix the ⅔ of the cheese, ⅔ of the green onions, ⅔ of the bacon, and remaining salt, pepper, and seasoning salt in a bowl with the eggs/cream. Gently fold this egg mixture into the hash brown/veggie mix.

      Both options are easy and work great!

Cheesy Hash Brown Breakfast Casserole Recipe (4)
Cheesy Hash Brown Breakfast Casserole Recipe (5)
  • Top the casserole with the remaining cheese and a handful of green onions.(Picture 15)
  • Cover your casserole tightly with tin foil and bake it for 35 minutes. Then, remove the foil and bake for another 10 minutes or until eggs are done.
Cheesy Hash Brown Breakfast Casserole Recipe (6)
  • Add salt and pepper to taste and serve immediately.

Here’s what the finished product looks like with sausage. It kind of falls apart a little when you scoop it out, but it is so good when you get a big forkful of egg, potato, and cheese:

Cheesy Hash Brown Breakfast Casserole Recipe (7)

Here’s the bacon version scooped out. So good:

Cheesy Hash Brown Breakfast Casserole Recipe (8)

🙋‍♀️ Frequently Asked Questions

How Long Can Breakfast Casserole Be Refrigerated Before Cooking?

Wrapped tightly in plastic wrap, you can keep an unbaked breakfast casserole in the refrigerator for 3 – 5 days. However, you can keep it in the freezer, unbaked, for up to 2 months or freeze and vacuum seal individual portions for an easy breakfast. (We love to meal prep this casserole for when guests visit or for easy breakfasts during the workweek.)

How Do You Keep Egg Casserole from Drying Out?

Covering this breakfast casserole with aluminum foil in the first part of the bake time helps the casserole to heat through the center while keeping it from drying out on the top. (This also keeps the cheese on top from burning.) Don’t skip this step!

How Do I Know When This Hashbrown Breakfast Casserole is Done?

Before removing the casserole from the oven, make sure it is done. You can do this by checking the temperature and making sure it is at 160℉. Or, you can stick a knife into the center and if it comes out clean with no egg on it, it is done.

How Do You Reheat Breakfast Casserole in the Oven?

To reheat your leftover casserole, cover it in aluminum foil and reheat it at 375℉ for 25 – 30 minutes the next morning. You can also heat individual portions in the air fryer or microwave for faster reheating.

Cheesy Hash Brown Breakfast Casserole Recipe (9)

🍱 Recipe Yield

If you are using a 13 x 9-inch baking dish or a 12 inch cast iron pan, you can get about 12 – 15 servings. A technical “serving” is typically 1 ounce, so you may eat more than 1 serving per helping – we usually have close to two per meal. This has served four people breakfast two days in a row, then there was enough for two the following day.

🍳 Serving Suggestions & Uses

This delicious hash brown breakfast casserole is perfect all on its own. It has protein, healthy carbs, dairy, and veggies. However, you can also serve it with a variety of breakfast sides such as:

  • Fresh Fruit
  • Buttermilk Muffins
  • Yogurt
  • Sweet Potato Pancakes
  • Cinnamon Knots
Cheesy Hash Brown Breakfast Casserole Recipe (10)

🥫 Storage/Shelf Life/Reheating

To store this delicious hash brown breakfast casserole, wrap it tightly with plastic wrap. Then, place it in the refrigerator. You can store it in the refrigerator after it’s been cooked for 3 – 5 days.

You can easily reheat individual portions of this hash brown casserole in the microwave, or you can wrap it in aluminum foil and reheat it in the oven. Bake at 375℉ for 25 – 30 minutes.

✏️ Helpful Tips

  • It’s okay to mix the hashbrowns into the sausage and veggies when they are still a little warm. The cheese is going to melt anyway.
  • You can make this recipe with bacon instead. Simply chop and cook bacon and add it to the veggies and hashbrowns like you did the sausage.
  • Always bake the hashbrowns first! You may be tempted to throw them in frozen, but baking them first makes the edges nice and crispy.
  • Use lots of cheese. I like to add even more cheese than the recipe calls. Add more if you like it cheesy.
  • You can use whole milk, 2%, or heavy cream for this recipe. They all work, but I find cream adds a little extra decadence.

Other Tasty Breakfast Recipes

  • Cinnamon Knots With Sweet Pecan Praline Crunch
  • Ham, Gruyere, and Potato Frittata
  • Cranberry, Orange, and Pecan Muffins
  • Ham, Cheese, and Green Onion Scones

Have You Tried This Recipe?

Please rate it and leave a comment below. I would love to hear what you think!

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Cheesy Hash Brown Breakfast Casserole Recipe (11)

Cheesy Hash Brown Breakfast Casserole

5 from 8 votes

Breakfast is the most important meal of the day, and this Hash Brown Breakfast Casserole has all the makings of a perfect breakfast! Packed with sausage or bacon, bell peppers, hash browns, and topped with shredded cheese, this casserole has a little bit of everything.

Author: Kari

Servings: 12

Prep: 15 minutes mins

Cook: 45 minutes mins

Total: 1 hour hr

Ingredients

  • 2 tablespoons olive oil
  • 1 pound breakfast sausage or 1 cup cooked, diced bacon
  • ½ medium onion diced
  • 1 sweet bell pepper diced – red, yellow, or orange
  • 1 bag frozen, shredded hashbrowns I used the Aldi brand
  • 8 ounces shredded cheese I have used sharp cheddar, regular cheddar
  • ¼ cup diced green onions or chives
  • 6 large eggs whisked/beaten
  • ½ cup milk or cream I like the extra flavor of using cream
  • ½ teaspoon black pepper
  • ½ teaspoon seasoning salt
  • ½ teaspoon kosher salt

Optional

  • 1 jalapeño, seeded and diced for a little lagniappe

Instructions

  • Preheat oven to 375˚F.

  • Spread hashbrowns on a baking sheet and roast them to "thaw" and crisp up while you prepare the sausage and veggies.

  • Place a skillet over medium heat. Add ½ tablespoon oil and brown sausage, breaking it up as it cooks. (If using cooked bacon, cook until crispy, then dice into bite-size pieces. Keep a tablespoon or so of bacon grease for flavor.)

  • Drain sausage and transfer to a large mixing bowl. Discard any excess fat and liquid from the pan.

  • Add 1 ½ tablespoons of oil to the skillet and sauté onions & bell pepper until vegetables just begin to soften. (About 5 minutes.) Season with just a pinch of salt, seasoning salt, and pepper, and stir it all together.

  • Transfer the vegetables to a bowl with the sausage or bacon. (See above in the post for alternate directions using bacon.)

  • Add the roasted hashbrowns, about ⅔ of the cheese, ⅔ of the green onions, and the remaining salt, pepper, and seasoned salt to the sausage and vegetable mixture and gently toss together until fully combined. (It's okay if the hashbrowns are a little warm – the cheese is going to melt anyway.)

  • Pour this back into the skillet or into a greased 13×9 pan.

  • In a mixing bowl, whisk together eggs and milk and pour this mixture over the sausage/vegetable mixture. Press the hashbrowns down into the milk/eggs to help it seep into all the nooks and crannies.

  • Sprinkle the top with the remaining cheese and a handful of green onions.

  • Cover casserole tightly with foil and bake for 35 minutes. Remove the foil and continue to bake for 10 more minutes or until the eggs set.

  • Serve immediately with salt and pepper to taste and some extra green onions.

Notes

🔢 Recipe Yield
If you are using a 13 x 9-inch baking dish or a 12 inch cast iron pan, you can get about 12 – 15 servings. A technical “serving” is typically 1 ounce, so you may eat more than 1 serving per helping – we usually have close to two per meal. This has served four people breakfast two days in a row, then there was enough for two the following day.

🙋‍♀️ Frequently Asked Questions
How Long Can Breakfast Casserole Be Refrigerated Before Cooking?
Wrapped tightly in plastic wrap, you can keep an unbaked breakfast casserole in the refrigerator for 3 – 5 days. However, you can keep it in the freezer, unbaked, for up to 2 months or freeze and vacuum seal individual portions for an easy breakfast. (We love to meal prep this casserole for when guests visit or for easy breakfasts during the workweek.)

How Do You Keep Egg Casserole from Drying Out?
Covering this breakfast casserole with aluminum foil in the first part of the bake time helps the casserole to heat through the center while keeping it from drying out on the top. (This also keeps the cheese on top from burning.) Don’t skip this step!

How Do I Know When This Hashbrown Breakfast Casserole is Done?
Before removing the casserole from the oven, make sure it is done. You can do this by checking the temperature and making sure it is at 160℉. Or, you can stick a knife into the center and if it comes out clean with no egg on it, it is done.

How Do You Reheat Breakfast Casserole in the Oven?
To reheat your leftover casserole, cover it in aluminum foil and reheat it at 375℉ for 25 – 30 minutes the next morning. You can also heat individual portions in the air fryer or microwave for faster reheating.

🥫 Storage/Shelf Life/Reheating
To store this delicious hash brown breakfast casserole, wrap it tightly with plastic wrap. Then, place it in the refrigerator. You can store it in the refrigerator after it’s been cooked for 3 – 5 days.

You can easily reheat individual portions of this hash brown casserole in the microwave, or you can wrap it in aluminum foil and reheat it in the oven. Bake at 375℉ for 25 – 30 minutes.

📋 Tips

  • It’s okay to mix the hashbrowns into the sausage and veggies when they are still a little warm. The cheese is going to melt anyway.
  • You can make this recipe with bacon instead. Simply chop and cook bacon and add it to the veggies and hashbrowns like you did the sausage.
  • Always bake the hashbrowns first! You may be tempted to throw them in frozen, but baking them first makes the edges nice and crispy.
  • Use lots of cheese. I like to add even more cheese than the recipe calls. Add more if you like it cheesy.
  • You can use whole milk, 2%, or heavy cream for this recipe. They all work, but I find cream adds a little extra decadence.

🍳 Serving Suggestions & Uses

This delicious hash brown breakfast casserole is perfect all on its own. It has protein, healthy carbs, dairy, and veggies. However, you can also serve it with a variety of breakfast sides such as:

  • Fresh Fruit
  • Buttermilk Muffins
  • Yogurt
  • Sweet Potato Pancakes
  • Cinnamon Knots

Nutrition

Serving: 1ounceCalories: 264kcalCarbohydrates: 2gProtein: 13gFat: 22gSaturated Fat: 9gPolyunsaturated Fat: 2gMonounsaturated Fat: 9gTrans Fat: 1gCholesterol: 138mgSodium: 589mgPotassium: 184mgFiber: 1gSugar: 1gVitamin A: 765IUVitamin C: 15mgCalcium: 122mgIron: 1mg

Nutrition information is approximate and is automatically calculated, so should only be used as a guide.

Course: Breakfast, Brunch

Cuisine: American, Southern

Keyword: bacon breakfast casserole, breakfast casserole, cheesy hashbrown breakfast casserole, hashbrown breakfast casserole, sausage breakfast casserole

Did you make this recipe?Mention @southernbytes or tag #southernbytes!

Filed Under: Breakfast, Christmas, Easter Recipes, Kid-Friendly, Main Courses, Michael's Favorite Southern Bytes Recipes, Oven Recipes, Southern Recipes

Cheesy Hash Brown Breakfast Casserole Recipe (12)

Hi, I'm Kari!

I am a newlywed, food blogger, health coach, and mama to a hot mess of a border collie. I love to put a new spin on old family recipes and I try to make as many meals as possible with an Instant Pot.

Read More About ME

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Cheesy Hash Brown Breakfast Casserole Recipe (2024)

FAQs

Why is my hash brown casserole soggy? ›

Frozen hash browns will leak moisture during cooking, which could leave a soggy, sad mess behind. For the best results, let the frozen hash browns thaw overnight in the fridge, then thoroughly pat them dry to remove as much moisture as possible before cooking them to crispy.

Should I thaw hash browns for casserole? ›

Thaw the hash browns before you start: Thawing the frozen hash browns prevents the sauce from clumping when you mix them in, and helps the casserole cook faster. You can thaw your shredded hash browns overnight in the fridge directly in their bag or for about an hour at room temperature.

Why is my breakfast casserole soggy? ›

Pre-cook the veggies. Veggies are naturally watery. As they cook, they release that moisture. If they only cook in the casserole, all that extra moisture will also be IN your casserole.

How do you know when breakfast casserole is done? ›

How do you know when breakfast casserole is done? Just stick a knife into the center of your egg casserole recipe after 55 minutes of baking. If it comes out clean, your baked egg casserole is ready!

What is the trick to cooking hash browns? ›

Squeezing the shredded potato in a towel or cheesecloth to remove as much moisture as possible helps it brown more evenly. Cooking the shredded potato briefly in the microwave helps it develop a better crust that remains crispy for longer.

What will prevent the hash browns from becoming crispy? ›

The potatoes will not brown until the excess moisture has cooked off, so that's why it's really important to get rid of as much water as possible before cooking. This is absolutely essential for crispy potatoes.

Should I rinse frozen hash browns before cooking? ›

A: Yes, you should because you need to get rid of the. excess moisture.

Why are my frozen hash browns not crispy? ›

A: Hash Browns or French fries are usually good in the freezer for 4-8 months at zero degrees F. While still cold, if they are soft to the touch that means they have lost the crispy texture you'll expect of a quick frozen potato. If this occurred over a day or two, you should be fine to heat them up.

Can I use regular potatoes instead of frozen hash browns? ›

Substitute fresh potatoes for 30 ounces of frozen hashbrowns. Substitute diced green onions for 3 tablespoons dried chives.

Why do you have to refrigerate breakfast casserole overnight? ›

The casserole is covered and refrigerated overnight to allow the liquid ingredients to be absorbed into the bread. This is a perishable mixture and should be cooked the morning or day after assembly. Bake in an oven set no lower than 325 °F. Most recipes suggest 350 °F.

How do you thicken a hash brown casserole? ›

Make a cornstarch slurry for a fast and easy thickener.

Use one tablespoon of cornstarch per cup of liquid you would like to thicken. Stir out all the lumps. A few minutes before your casserole is done, add it a little at a time until you are happy with the thickness. Then, let the casserole finish baking.

What are the 5 components of a casserole? ›

Let's talk anatomy: A standard dinner casserole usually includes a protein, a starch, a vegetable, a sauce (or other binding ingredient), and cheese. But making a casserole is not an exact science, and you can definitely break away from this formula. Check out some fun side-dish casseroles and desserts below!

Do I bake my casserole covered or uncovered? ›

Uncovering the foods promotes browning and crisping, and reduces the amount of liquid in the finished dish. If a casserole looks soupy when it's ready to bake, bake it uncovered unless the ingredients include pasta or rice, which absorb liquid.

Is it better to cook casserole the day before or? ›

Make-ahead meals (especially baked casseroles) are terrific because you can completely assemble them in advance and bake them just before serving. They're the ultimate comfort food as they come bubbling hot and delicious straight from the oven to the table to the delight of family and friends.

How long should a casserole be in the oven? ›

The time a casserole takes to cook will vary from 2-2½ hours for chuck, blade and thick flank, up to 4 hours for shin, leg and neck. Pork cuts for braising and casseroling normally take 1½ hours, and lamb much the same.

How to fix runny hashbrown casserole? ›

10 Tips To Fix Or Prevent Watery Casseroles
  1. Prep vegetables ahead of time. Solstock/Getty Images. ...
  2. Add a starch. NIKCOA/Shutterstock. ...
  3. Experiment with pasta or grains. Pidjoe/Getty Images. ...
  4. Take the lid off. ...
  5. Drain fat from meat. ...
  6. Choose a dry or low-fat cheese. ...
  7. Sprinkle seeds into your bake. ...
  8. Remove excess liquid.
Oct 29, 2023

How do you make a casserole not soggy? ›

To prevent a soggy top and a firm or crunchy bottom, it's important to use a shallow baking dish, to cook the casserole at the correct oven temperature and for the appropriate amount of time, and to be mindful of the amount of liquid used in the recipe.

How to fix a watery casserole? ›

10 Tips To Fix Or Prevent Watery Casseroles
  1. Prep Vegetables Ahead Of Time. Vegetables boiling on a stove - Solstock/Getty Images. ...
  2. Add A Starch. ...
  3. Experiment With Pasta Or Grains. ...
  4. Take The Lid Off. ...
  5. Drain Fat From Meat. ...
  6. Choose A Dry Or Low-Fat Cheese. ...
  7. Sprinkle Seeds Into Your Bake. ...
  8. Remove Excess Liquid.
Oct 29, 2023

Why is my potato casserole runny? ›

My sauce is watery

If you used a pre-prepped potato from the refrigerator section instead of slicing your own, they can have preservatives that make them a bit watery. If you stored your potatoes in water to prevent discoloring, be sure to drain them well and pat them dry before adding to your casserole.

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