Baked

Breakfast Casserole

Name: Breakfast Casserole
Prep time: 20 min
Cook time: 35 min
Total time: 55 min
Yield: 6 servings
Ingredients: 6 large eggs; 1 cup (115g) cheddar cheese, shredded; 1/2 cup (55g) parmesan cheese, grated; 1/2 cup (60g) diced bell peppers; 1/2 cup (60g) diced onions; 2 cloves garlic, minced; 6 slices of bacon, diced; 1 cup (120g) frozen hash browns, thawed; 1/2 teaspoon salt; 1/4 teaspoon black pepper

By Opal Norwood · June 19, 2026 · Baked

Prep20 min

Cook35 min

Total55 min

Serves6

I still remember the first time I made a breakfast casserole for my family. It was a Sunday morning, and we were all gathered in the kitchen, waiting for something delicious to start the day. I had found a simple recipe online, but I decided to add my own twist to it, using some of our favorite ingredients. The result was a dish that quickly became a staple in our household.

Over the years, I've perfected the recipe, and now I'm excited to share it with you. This breakfast casserole is perfect for slow mornings when you want to enjoy a leisurely breakfast with your loved ones, or for quick weekdays when you need something easy and satisfying to go.

One of the things I love about this recipe is its versatility. You can customize it to your taste by using different types of cheese, meats, and vegetables. And the best part is that it's incredibly easy to make, even for a beginner. So, whether you're a seasoned cook or just starting out, this breakfast casserole is sure to become a favorite in your household.

In this recipe, I'll guide you through the process of making a delicious breakfast casserole from scratch. We'll start with the ingredients and equipment you'll need, and then move on to the steps involved in preparing and cooking the dish. I'll also share some tips and variations to help you make the most of this recipe.

So, let's get started and make a breakfast casserole that will become a staple in your household. With its rich flavors, satisfying texture, and ease of preparation, this dish is sure to be a hit with your family and friends.

Why You’ll Love This Recipe

This breakfast casserole is perfect for slow mornings and quick weekdays.
It's easy to customize with your favorite ingredients.
The recipe is simple and easy to follow, even for a beginner.
The dish is rich in flavor and satisfying in texture.
It's a great way to use up leftover vegetables and cheese.
The casserole can be made ahead of time and refrigerated or frozen for later use.

Why This Recipe Works

The key to a great breakfast casserole is using the right combination of ingredients and cooking techniques. In this recipe, we'll be using a mixture of eggs, cheese, and vegetables, which provides a rich and satisfying flavor profile. The eggs will be cooked slowly over low heat, which will help them retain their moisture and texture.

Another important aspect of this recipe is the use of a water bath, which helps to cook the casserole evenly and prevents it from drying out. By placing the dish in a larger pan filled with hot water, we can create a gentle and consistent heat that will cook the casserole to perfection.

Finally, the resting time is crucial in this recipe. After the casserole is cooked, it's essential to let it rest for a few minutes before serving. This allows the eggs to set, the cheese to melt, and the flavors to meld together. By following these simple steps, you'll be able to create a delicious breakfast casserole that will impress your family and friends.

Ingredients You’ll Need

When it comes to making a delicious breakfast casserole, the ingredients are crucial. You'll need a combination of eggs, cheese, vegetables, and meats to create a rich and satisfying flavor profile. In this recipe, we'll be using a mixture of cheddar and parmesan cheese, which provides a nice balance of flavors and textures.

When shopping for the ingredients, be sure to choose high-quality items that are fresh and flavorful. For the vegetables, you can use any combination of bell peppers, onions, and mushrooms that you like. And for the meat, you can use bacon, sausage, or ham, depending on your preference.

6 large eggsFresh eggs are essential for this recipe, as they will provide a rich and creamy texture to the casserole. Look for eggs that are labeled as 'large' or 'extra large' to ensure that they will provide the right amount of moisture and flavor.
1 cup (115g) cheddar cheese, shreddedA combination of cheddar and parmesan cheese is perfect for this recipe, as it provides a nice balance of flavors and textures. Look for a high-quality cheddar cheese that is labeled as 'sharp' or 'extra sharp' to ensure that it will provide a rich and tangy flavor.
1/2 cup (55g) parmesan cheese, gratedParmesan cheese is a great addition to this recipe, as it provides a nice salty flavor and a smooth texture. Look for a high-quality parmesan cheese that is labeled as 'freshly grated' to ensure that it will provide the best flavor and texture.
1/2 cup (60g) diced bell peppersBell peppers are a great addition to this recipe, as they provide a sweet and crunchy texture. Look for bell peppers that are labeled as 'fresh' and have a vibrant color to ensure that they will provide the best flavor and texture.
1/2 cup (60g) diced onionsOnions are a great addition to this recipe, as they provide a sweet and savory flavor. Look for onions that are labeled as 'fresh' and have a sweet aroma to ensure that they will provide the best flavor and texture.
2 cloves garlic, mincedGarlic is a great addition to this recipe, as it provides a rich and savory flavor. Look for garlic that is labeled as 'fresh' and has a strong aroma to ensure that it will provide the best flavor and texture.
6 slices of bacon, dicedBacon is a great addition to this recipe, as it provides a smoky and savory flavor. Look for bacon that is labeled as 'thick-cut' or 'smoked' to ensure that it will provide the best flavor and texture.
1 cup (120g) frozen hash browns, thawedHash browns are a great addition to this recipe, as they provide a crispy and golden texture. Look for hash browns that are labeled as 'frozen' and have a crunchy texture to ensure that they will provide the best flavor and texture.
1/2 teaspoon saltSalt is a great addition to this recipe, as it provides a savory flavor and helps to bring out the flavors of the other ingredients. Look for salt that is labeled as 'kosher' or 'sea salt' to ensure that it will provide the best flavor and texture.
1/4 teaspoon black pepperBlack pepper is a great addition to this recipe, as it provides a sharp and savory flavor. Look for black pepper that is labeled as 'freshly ground' to ensure that it will provide the best flavor and texture.

Equipment You’ll Need

Large skilletWhiskMeasuring cups and spoons9x13 inch baking dishInstant-read thermometerOven

How to Make Breakfast Casserole

1
Preheat the oven to 350°F (175°C).
2
In a large skillet, cook the diced bacon over medium heat until it is crispy and golden brown, about 6-8 minutes. Remove the bacon from the skillet and set it aside on a paper towel-lined plate.
3
In the same skillet, add the diced onions and cook until they are translucent and starting to caramelize, about 5-7 minutes. Add the minced garlic and cook for an additional 1-2 minutes, until fragrant.
4
In a large bowl, whisk together the eggs, cheddar cheese, parmesan cheese, salt, and black pepper. Stir in the cooked bacon, onions, and garlic.
5
Add the diced bell peppers and hash browns to the bowl and stir until they are well combined.
6
Pour the egg mixture into the prepared baking dish and smooth the top.
7
Bake the casserole for 35-40 minutes, or until the eggs are set and the top is golden brown. Use an instant-read thermometer to check the internal temperature of the casserole, which should be at least 160°F (71°C).
8
Remove the casserole from the oven and let it rest for 10-15 minutes before serving.
9
Slice the casserole into servings and serve hot, garnished with chopped fresh herbs if desired.
10
To check for doneness, insert a knife into the center of the casserole. If the knife comes out clean, the casserole is done. If not, return it to the oven for an additional 5-10 minutes and check again.

Expert Tips

Use high-quality ingredients, such as fresh eggs and real cheese, to ensure the best flavor and texture.
Don't overmix the egg mixture, as this can result in a tough and dense casserole.
Use a variety of vegetables, such as bell peppers, onions, and mushrooms, to add flavor and texture to the casserole.
Add some heat to the casserole by incorporating diced jalapenos or red pepper flakes.
Make the casserole ahead of time and refrigerate or freeze it for later use.
Use leftover vegetables and cheese to make the casserole, which will help reduce food waste and save money.
Add some fresh herbs, such as parsley or chives, to the casserole for added flavor and color.
Serve the casserole with a side of toast or hash browns for a filling breakfast or brunch.

Common Mistakes to Avoid

Overcooking the casserole, which can result in a dry and tough texture.
Not using enough eggs, which can result in a casserole that is too dense and dry.
Not adding enough seasoning, which can result in a casserole that is bland and flavorless.
Not using high-quality ingredients, which can result in a casserole that is lacking in flavor and texture.
Not letting the casserole rest before serving, which can result in a casserole that is not set and is difficult to slice.
Not checking the internal temperature of the casserole, which can result in a casserole that is not cooked to a safe temperature.

Variations and Substitutions

Add some diced ham or sausage to the casserole for added protein and flavor.
Use different types of cheese, such as Swiss or feta, to add unique flavors to the casserole.
Add some chopped fresh herbs, such as parsley or chives, to the casserole for added flavor and color.
Use leftover vegetables and cheese to make the casserole, which will help reduce food waste and save money.
Make the casserole in individual servings, such as muffin tins or ramekins, for a fun and easy breakfast or brunch.
Add some heat to the casserole by incorporating diced jalapenos or red pepper flakes.
Use a different type of milk, such as almond or soy milk, to make the casserole dairy-free.

What to Serve With Breakfast Casserole

This breakfast casserole is perfect for serving with a side of toast or hash browns. You can also serve it with a fresh fruit salad or a green salad for a healthy and balanced meal.

Consider serving the casserole with a dollop of sour cream or a sprinkle of chopped fresh herbs, such as parsley or chives, for added flavor and color.

Serve the casserole with a side of toast or hash browns.Serve the casserole with a fresh fruit salad or a green salad.Serve the casserole with a dollop of sour cream or a sprinkle of chopped fresh herbs.Serve the casserole as a main dish, especially if you add some protein sources, such as bacon or sausage.

Make-Ahead, Storage, Freezing and Reheating

This breakfast casserole can be made ahead of time and refrigerated or frozen for later use. To refrigerate, cover the casserole with plastic wrap or aluminum foil and store it in the refrigerator for up to 3 days.

To freeze, cover the casserole with plastic wrap or aluminum foil and store it in the freezer for up to 2 months. To reheat, thaw the casserole overnight in the refrigerator and then bake it in the oven at 350°F (175°C) for 20-25 minutes, or until it is hot and bubbly.

When reheating the casserole, make sure to check the internal temperature to ensure that it reaches a safe temperature of at least 160°F (71°C). You can also reheat the casserole in the microwave, but be careful not to overheat it, as this can result in a dry and tough texture.

Frequently Asked Questions

Can I make this breakfast casserole ahead of time?

Yes, you can make this breakfast casserole ahead of time and refrigerate or freeze it for later use. Simply cover the casserole with plastic wrap or aluminum foil and store it in the refrigerator for up to 3 days or freeze it for up to 2 months.

Can I use different types of cheese in this recipe?

Yes, you can use different types of cheese in this recipe, such as Swiss or feta, to add unique flavors to the casserole. Just be sure to choose a cheese that melts well and has a flavor that complements the other ingredients.

Can I add some heat to this recipe?

Yes, you can add some heat to this recipe by incorporating diced jalapenos or red pepper flakes. Just be careful not to add too much heat, as this can result in a casserole that is too spicy.

Can I make this recipe dairy-free?

Yes, you can make this recipe dairy-free by using a different type of milk, such as almond or soy milk, and choosing a dairy-free cheese alternative. Just be sure to choose a milk and cheese that are high-quality and have a flavor that complements the other ingredients.

Can I serve this recipe as a main dish?

Yes, you can serve this recipe as a main dish, especially if you add some protein sources, such as bacon or sausage, to the casserole. Just be sure to choose a side dish that complements the flavors of the casserole, such as a fresh fruit salad or a green salad.

Can I make this recipe in individual servings?

Yes, you can make this recipe in individual servings, such as muffin tins or ramekins, for a fun and easy breakfast or brunch. Just be sure to adjust the cooking time and temperature accordingly to ensure that the casserole is cooked to a safe temperature.

Can I freeze this recipe?

Yes, you can freeze this recipe for up to 2 months. To freeze, cover the casserole with plastic wrap or aluminum foil and store it in the freezer. To reheat, thaw the casserole overnight in the refrigerator and then bake it in the oven at 350°F (175°C) for 20-25 minutes, or until it is hot and bubbly.

Can I refrigerate this recipe?

Yes, you can refrigerate this recipe for up to 3 days. To refrigerate, cover the casserole with plastic wrap or aluminum foil and store it in the refrigerator. To reheat, bake the casserole in the oven at 350°F (175°C) for 20-25 minutes, or until it is hot and bubbly.

The Full Recipe

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