This Sausage Egg and Cheese Breakfast Casserole is a simple, low-carb meal perfect for busy mornings. With protein-packed sausage, fluffy eggs, and sharp cheddar cheese, it’s a satisfying way to start your day.

- Cuisine: American
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Servings: 8
Why You’ll Love This Recipe
- Low-carb and high in protein, keeping you full longer.
- Easy to prepare and perfect for meal preps or gatherings.
- Minimal ingredients with maximum flavor.
- Customizable with your favorite ingredients or leftovers.
Ingredients
- 1 lb Breakfast Sausage: Provides a hearty base and rich flavor. Substitute with turkey sausage for a leaner option.
- 1 tbs Dried Minced Onion: Adds convenience and flavor without chopping. You can use 1 small fresh onion, finely chopped, if preferred.
- 1 Dozen Eggs: The main body of the casserole, providing structure and protein.
- 3/4 c Whole Milk: Contributes to the casserole’s creamy texture. For a lighter option, use skim or plant-based milk.
- 1 tsp Salt: Enhances the flavors of all ingredients.
- 1/4 tsp Ground Black Pepper: Adds a subtle heat and depth.
- 1 c Grated Sharp Cheddar Cheese (divided): Offers a sharp, tangy bite. Substitute with Monterey Jack or another preferred cheese.
How to Make It
Step 1: Brown the Sausage
In a skillet, brown the breakfast sausage over medium heat, breaking it apart as it cooks to ensure an even texture. Add the dried minced onion midway to infuse it with the sausage as the flavors meld. Cook until the sausage is no longer pink.
Step 2: Prepare the Egg Mixture
In a mixing bowl, whisk together the dozen eggs until fully combined. Gradually incorporate the whole milk, salt, and black pepper. This mixture should be smooth and evenly seasoned, forming the foundation of your casserole.
Step 3: Assemble the Casserole
Preheat your oven to 350°F (175°C). Take a casserole dish and layer 3/4 of the cooked sausage on the bottom. Sprinkle over half of the grated cheddar cheese, creating layers of flavor. Carefully pour the egg mixture over the sausage and cheese, ensuring it spreads evenly.
Step 4: Bake and Finish
Place the casserole into the preheated oven and bake for 30 minutes, or until the eggs are nearly set. The surface should not be fully firm but just slightly jiggly in the center. Top with the remaining cheese and reserved sausage. Return to the oven for another 10-15 minutes, allowing the cheese to melt and turn golden.
Step 5: Serve and Enjoy
Remove the casserole from the oven and let it cool slightly before cutting into squares. This helps the ingredients to settle and makes serving easier. Enjoy hot for a hearty breakfast.
Recipe FAQs
Can I make this casserole ahead of time?
Yes, you can assemble the casserole the night before, cover it, and refrigerate. When ready to bake, let it come to room temperature before baking as directed.
Can I use a different type of cheese?
Absolutely, feel free to use your preferred cheese. Cheddar provides a nice sharpness, but mozzarella, Monterey Jack, or Swiss work well too.
How can I reheat leftovers?
Reheat individual portions in the microwave for 1-2 minutes or the entire casserole in the oven at 300°F until warmed through, about 15-20 minutes.