Sausage Breakfast Casserole Recipe [Video]

Sausage Breakfast Casserole is an easy hearty dish made with eggs, sausage, bell pepper, cheddar cheese, and bacon. This is the perfect way to start your mornings!

I love making easy and delicious breakfast recipes. Eggs have always been a part of our diet and it is always a good thing to have them in the morning. For more egg recipes like this one, check out my recipes for Egg Foo Young, Pickled Eggs, and Asparagus Frittata!

Did you know that this Breakfast Sausage Casserole is one of the most popular holiday breakfasts? When Christmas morning comes, this is the dish you want to serve to your family! 

Firstly, it is a hearty dish loaded with a variety of meats, veggies, and dairy with eggs as the base. It is as colorful as it is flavorful which is fit for the holidays!

Also, this dish is so easy to make that you can start preparing it the night before and then, just pop it in the oven the next morning. And what is good about making casseroles is that it is an easy way to feed a huge group of people.

Even when it is an ordinary day, you can offer it to your family. It is so appetizing that they will not miss it for sure.

Breakfast, after all, is important for our health and studies have linked it to numerous benefits. With this recipe, you ensure that everyone starts their day right!

Ingredients Needed:

• Bacon
• Pork Sausage: I use pork sauce, but you can use your favorite type. Feel free to use Italian sausage, turkey sausage, leftover ham, etc. 
• Vegetable oil or olive oil
• Eggs
• Greek yogurt
• Milk
• Veggies and greens: Such as red bell pepper, green bell pepper, onion, garlic, fresh spinach, and green onions. 
• Cheese: I like using shredded cheddar cheese and mozzarella cheese. 
• Kosher salt and black pepper. 

How to make Sausage Breakfast Casserole?

1. Prepare for baking: First, preheat the oven and grease the pan.
2. Make the egg mixture: Using an electric mixer set on low, combine the eggs and dairy ingredients in a large bowl. Season with salt and pepper.
3. Prepare the sausage mixture: In a skillet, over medium-high heat, sauté the aromatics. Then, add in the sausage. Drain any excess grease that may form in the pan. Next, add in the vegetables.
4. Assemble: Add the sausage mixture to the egg mixture then, add the bacon. Stir everything.
5. Bake: Lastly, pour the mixture into a greased 9×13 casserole dish, and bake for about 35 to 50 minutes.
6. Serve: Garnish with green onion, and then serve warm.

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How to make an overnight Breakfast Casserole?

You can easily turn this into a heartier dish by adding in bread cubes. Follow these simple steps:

• Prepare the bread cubes: Cut slices of bread into cubes the night before and refrigerate them. Drying them out in the oven works, too.
• Make the wet mixture: Use the same egg and sausage mixtures in this recipe.
• Assemble: Combine the mixtures and fold in the bread cubes. Pour evenly on the pan, and then, cover and refrigerate overnight.
• Bake: The next day, the bread must have soaked up all the moisture and it is then ready for baking. Let it sit at room temperature first for a few minutes before baking. It will take longer to bake than when there is no bread added.
• Serve: Garnish and serve as usual.

What can I add to this dish?

This is a great recipe that is also highly versatile. You can mix in any vegetables or meat that you want. Here are some alternatives:

• Meat: Add in ham, ground beef, turkey breasts, or even leftover rotisserie chicken. 
• Veggies: Also, feel free to add other veggies. I usually go with bell peppers, mostly green or red pepper. However, some great additions would be mushrooms, broccoli, potatoes, or artichokes.
• Other cheeses: You can go with pepper jack, Mexican, Monterrey Jack, feta cheese, or any other type. 
• Seasonings: Other options would be adding dried mustard, ranch seasoning, or Italian seasoning. 

Can you make-ahead breakfast casserole?

Yes. You can assemble it the night before following the steps described above. Then, cover the dish tightly with aluminum foil, and refrigerate overnight. 

The following morning, simply pop it in the oven and cook. This way, you can have a holiday breakfast waiting and ready to go.

Storing instructions:

• Refrigerate: You can simply cover leftovers tightly, or transfer them to an airtight container. Then, store them in the fridge for no more than 5 days. Reheat it in the microwave oven.
• Freeze: Baked or unbaked, this dish can stay good for up to 2 months in the freezer. It is a good make-ahead dish as you can simply thaw overnight and then, bake to cook. Simply cover it with plastic wrap and another layer of foil.

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Cooking Tips:

• For the meat, the only recommendation is to add it in cooked already just like what we did in this recipe.
• Also, to save time, use pre-cooked sausage to make this dish. 
• In addition, you can leave out the meat altogether. Simply, use more veggies such as beans instead.
• If you are adding in bread, the best kinds are the stale ones as they are dry already and more effective in soaking up the liquid.