When it comes to feeding a crowd without stress, this Sausage Egg and Cheese Breakfast Casserole is one of the smartest recipes you can make. It’s hearty, comforting, and packed with flavor—everything you want in a perfect breakfast.
This dish combines savory sausage, fluffy eggs, and melted cheese baked together in one pan for a rich and satisfying meal. Even better, you can prepare it ahead of time and simply bake it in the morning.
Perfect for weekend brunches, holidays, or busy mornings, this casserole is always a hit.

Why You’ll Love This Recipe
- Perfect for a crowd – Feeds multiple people easily
- Make-ahead friendly – Prep the night before
- Simple ingredients – Pantry staples you already have
- High-protein meal – Keeps you full for hours
- One-dish recipe – Easy cleanup
It’s the kind of breakfast that feels special but requires very little effort.
Ingredients
Egg Base
- 12 large eggs
- ¾ cup whole milk
- 1 teaspoon salt
- ¼ teaspoon black pepper
Sausage Mixture
- 1 lb breakfast sausage
- 1 tablespoon dried minced onion
Assembly
- 1 cup shredded sharp cheddar cheese (divided)
Ingredient Notes
Sausage
You can use pork, turkey, or chicken sausage depending on your preference.
Milk
Whole milk gives the creamiest texture, but 2% or plant-based milk works too.
Cheese
Cheddar is classic, but you can mix in mozzarella, Monterey Jack, or Gruyère.
How to Make Breakfast Casserole
1. Cook the sausage
In a skillet over medium heat, cook the sausage, breaking it into small pieces.
Add the dried onion and cook until the sausage is fully browned.
Drain excess fat and set aside.
2. Prepare the egg mixture
In a large bowl, whisk the eggs until smooth.
Add milk, salt, and pepper, then whisk again until fully combined.
3. Assemble the casserole
Preheat oven to 350°F (175°C) and grease a baking dish.
- Add ¾ of the sausage mixture to the bottom
- Sprinkle half of the cheese on top
- Pour the egg mixture evenly over everything
4. Bake
Bake for 30 minutes, until the eggs are mostly set.
5. Add topping and finish baking
Remove from oven and add:
- Remaining cheese
- Remaining sausage
Return to oven and bake for 10–15 minutes until fully set and golden.
(Optional: broil for 1–2 minutes for a crispy top)
6. Rest and serve
Let the casserole rest for a few minutes before slicing.
Serve warm and enjoy!
Tips for Best Results
Cook sausage fully first
This prevents excess grease and ensures great flavor.
Don’t overbake
Remove when the center is just set to avoid a rubbery texture.
Layer cheese properly
Adding some at the end gives that perfect golden top.
Whisk eggs well
This creates a light and fluffy texture.
What to Serve With It
This casserole pairs well with:
- Fresh fruit salad
- Toast or English muffins
- Hash browns or roasted potatoes
- Coffee or fresh juice
It’s a complete breakfast spread.
Storage & Reheating
Fridge:
Store up to 4 days in an airtight container
Freezer:
Freeze individual portions up to 3 months
Reheat:
- Microwave: 1–2 minutes
- Oven: 350°F for 10–15 minutes
Final Thoughts
This Sausage Egg and Cheese Breakfast Casserole is the ultimate comfort breakfast—simple, satisfying, and perfect for sharing. With minimal prep and maximum flavor, it’s a recipe you’ll turn to again and again.
Whether for a lazy Sunday or a busy morning, this dish makes breakfast easy and delicious.
