This easy Breakfast Casserole recipe is made with eggs, sausage, and cheese and only takes a few minutes to throw together. You can make it ahead of time, so it’s the perfect breakfast casserole for Christmas morning or any day!
Try other popular breakfast recipes like perfect Cinnamon Rolls or Monte Cristo Sandwich.
Breakfast Casserole
So, I always thought I had the best breakfast casserole recipe (this overnight breakfast casserole that we make a few times a year). I recently learned I was mistaken, because this breakfast casserole right here really is the BEST!
And, although I still really love the other recipe, this one is more of a traditional breakfast casserole, with tons of eggs, and it’s fantastic! Plus, you can still make it the night before so it’s perfect for holidays and special events where you don’t have a lot of time to prepare in the morning.
I adapted this recipe from my sister Jessica over at Pretty Providence. I added a couple extra eggs, some milk, left out the mushrooms and cut the amount of bell peppers in half. The great thing about this recipe is how adaptable it is! It’s delicious with other types of cheese like pepperjack or Swiss, or you could try adding more veggies, like spinach or zucchini.
How to make easy breakfast casserole:
The main ingredients for this egg casserole are really simple and include: eggs, sausage, bell peppers, onion, and cheese. We add sour cream and milk to the egg mixture to make it creamy, light and fluffy.
To make the casserole combine the eggs, sour cream, milk, cheese, and salt and pepper in a large bowl.
Next, cook the sausage, breaking it into small bits as it’s browning. Set it aside and then saute the bell peppers and onions in the same pan. Add everything to the egg mixture and stir to combine. Pour it into a 9×13” pan and bake for 35-50 minutes or until the edges are set and the center is a little jiggly in the center. It will continue to cook and set up as it cools.
After baking, leftover egg casserole can be stored in the fridge and enjoyed within 3-4 days. Leftovers are delicious reheated in the microwave.
Can I make this breakfast casserole ahead of time?
Yes, you can make this breakfast casserole a day ahead, or freeze it to bake another day!
To make one day ahead of time, prepare everything as directed, up until baking. Cover the casserole and store it (unbaked) in the refrigerator overnight or up to one day. Bake in the morning, according to recipe instructions.
To freeze breakfast casserole prepare the recipe and add to your pan. Cover well with plastic wrap and then tinfoil and freeze for 2-3 months. Allow it to thaw overnight in the refrigerator, and then let it come to room temperature before baking according to recipe instructions.
Consider trying these popular brunch recipes:
- Cinnamon Roll Cake with Cream Cheese Frosting
- Apple Coffee Cake
- Peach Scones
- Poppy Seed Cake
- Broccoli Cheese Quiche
- Sour Cream Coffee Cake
- Lemon Zucchini Bread
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Recipe
Breakfast Casserole
Equipment
Ingredients
- 2 pounds pork sausage
- 12 eggs
- 1 cup sour cream (light or regular)
- 1/4 cup milk
- 1 teaspoon kosher salt
- 1/2 teaspoon ground black pepper
- 4 green onions
- 1/2 green bell pepper , diced
- 1/2 red bell pepper , diced
- 2 cups shredded cheddar cheese
Instructions
- Preheat oven to 350 degrees. Spray a 9x13’’ pan with cooking spray.
- Combine the eggs, sour cream, milk, cheese and salt and pepper in a large bowl. Mix on low speed with electric mixers, just until combined.
- Heat a large skillet over medium heat. Add sausage and cook until browned, breaking it into small pieces with a wooden spoon as it cooks. Drain most of the grease and add the sausage to the bowl with the egg mixture.
- Add the bell peppers and onion to the same skillet the sausage was cooked in and sauté for 2- 3 minutes. Add to the bowl with the eggs and stir everything to combine.
- Pour mixture into greased 9x13’’ pan and bake for 35-50 minutes or until the edges are set and the center is just barely jiggly.
- Leftover egg casserole can be stored in the fridge and enjoyed within 3-4 days. Leftovers are delicious reheated in the microwave.
Notes
Nutrition
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Have you tried this recipe?!
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Our go to special breakfast, including Christmas morning! So tasty!
I make a spicy, all veggie version of this too! Minus sausage and I add jalepeno, spinach, mushrooms to the peppers and onions.
I have made this recipe a few times and it is really good. I use 1 lb of hot sausage and one of regular and it has a nice kick to it. How can I thaw it quickly as I need it and I forgot to take it out of the freezer? Thanks
I did not have sausage / but used ham and bacon – used half and half as I did not have milk – I think you could put about anything in this and it would be yummy ! Love that it does not use bread or flour.
Excellent! I used regular pork sausages cubed. Added 1/2 tsp. dry mustard. Delicious! Everyone enjoyed! Thank you!
Hello everyone! Has anyone tried adding cottage cheese to this recipe to add more protein? If so, how much?
Kind of average. Nothing special
This is a tasty recipe with easy prep. I used only 1/2 teaspoon of salt and it was salty enough with 2 cups of cheddar cheese.
we had 8 people at the lake for a family vacation, this recipe was a hit! Even my mom, who doesn’t like eggs or casseroles, enjoyed this one. Will definitely make it again!
I made this recipe for a 5 day camping trip with my wife. We have a microwave and prefer to cook our meals a head of time to make for a more relaxing vacation. I modified it a bit. I used 1 lb. of mild italian sausage instead of 2. Texmex cheese shredded. I added feta cheese as well. I also used an additional 6 eggs. This is very tasty. I will definitely make this often. Thank you for the recipe!