Breakfast Sausage Casserole (Printable)

Hearty baked dish with savory sausage, fluffy eggs, and melted cheese on golden bread cubes. Perfect for feeding a crowd.

# What You’ll Need:

→ Meats

01 - 1 pound breakfast sausage, casings removed

→ Vegetables & Aromatics

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

→ 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 (French or sourdough)

→ 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

# Directions:

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

# Expert Advice:

01 -
  • Its the kind of breakfast that makes people feel taken care of without you standing at the stove for hours
  • You can assemble it the night before and bake while the coffee brews
  • The leftovers reheat beautifully for those chaotic weekday mornings
02 -
  • Fresh bread turns to mush in this recipe—those cubes need to be slightly stale to absorb the custard without collapsing
  • If you bake straight from the fridge, add 10 minutes to the covered baking time
  • The center should not jiggle when you gently shake the pan—that's how you know it's fully set
03 -
  • Use paper towels to blot the cooked sausage before adding it to the dish—your casserole will be cleaner and the flavors brighter
  • Cut your bread cubes slightly larger than you think you should—they shrink as they soak up the custard
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