Breakfast Sausage Casserole (Printable)

Hearty baked dish with sausage, eggs, cheese, and golden bread cubes. Perfect for feeding crowds or prepping ahead.

# What You'll Need:

→ Meats

01 - 1 pound breakfast sausage, casings removed

→ Vegetables & Aromatics

02 - 1 small yellow onion, finely chopped
03 - 1/2 red bell pepper, diced

→ Dairy & Eggs

04 - 8 large eggs
05 - 2 cups whole milk
06 - 2 cups shredded cheddar cheese
07 - 1/2 cup shredded mozzarella cheese

→ Bread

08 - 6 cups day-old bread, cut into 1-inch cubes

→ Seasonings

09 - 1 teaspoon salt
10 - 1/2 teaspoon black pepper
11 - 1/2 teaspoon dried mustard powder
12 - 1/4 teaspoon paprika

→ For Greasing

13 - Butter or nonstick spray

# Step-by-Step Guide:

01 - Preheat oven to 350°F. Grease a 9x13-inch baking dish with butter or nonstick spray.
02 - In a large skillet over medium heat, cook sausage, breaking up with spoon, until browned and cooked through, about 5–7 minutes. Add onion and bell pepper if using; sauté until softened, 3–4 minutes. Drain excess fat.
03 - Spread bread cubes evenly in prepared baking dish. Top with cooked sausage mixture.
04 - In a large bowl, whisk together eggs, milk, salt, pepper, mustard powder, and paprika until well combined.
05 - Stir in 1 1/2 cups cheddar cheese and all the mozzarella into the egg mixture.
06 - Pour egg mixture evenly over bread and sausage. Gently press bread down to absorb liquid.
07 - Sprinkle remaining cheddar cheese evenly over the top.
08 - Cover with foil and bake for 30 minutes.
09 - Remove foil and bake another 15 minutes until golden and set in center.
10 - Let rest for 10 minutes before slicing and serving.

# Expert Suggestions:

01 -
  • You can assemble it the night before and just pop it in the oven, which means you are not a hostage to your kitchen on holidays.
  • The leftovers actually taste better the next day, if you somehow manage to have any.
02 -
  • If you bake this straight from the fridge, add 10 extra minutes because cold custard takes longer to set.
  • Day old bread is non negotiable because fresh bread will dissolve into a texture that no one wants to eat for breakfast.
03 -
  • Grate your own cheese instead of buying pre shredded because the anti caking agents in bagged cheese prevent smooth melting.
  • Let the casserole come to room temperature for 20 minutes before baking if it has been refrigerated overnight, which ensures even cooking.
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