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Easy Cheesy Sausage and Cheese Breakfast Casserole Recipe for Perfect Mornings

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A quick and comforting breakfast casserole featuring browned sausage, gooey cheese, fluffy eggs, and bread cubes soaked in a creamy custard. Perfect for busy mornings or brunch gatherings.

Ingredients

Scale
  • 1 pound breakfast sausage (mild or sweet)
  • 8 large eggs, room temperature
  • 2 cups whole milk or half-and-half (480 ml)
  • 2 cups shredded sharp cheddar cheese (200 g)
  • 6 cups cubed day-old bread (about 1012 slices) – white, whole wheat, or sourdough
  • 1 small yellow onion, finely chopped
  • 1 teaspoon garlic powder
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • Optional: chopped fresh parsley or chives for garnish

Instructions

  1. Preheat the oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with butter or non-stick spray.
  2. Heat a large skillet over medium heat and crumble in the sausage. Cook for 7–10 minutes, stirring occasionally, until browned and cooked through. Transfer sausage to a paper towel-lined plate to drain excess fat.
  3. In the same skillet, add the chopped onion and cook for 3–4 minutes until softened and translucent. Let cool slightly.
  4. In a large bowl, combine the cubed bread, cooked sausage, sautéed onions, and shredded cheddar cheese. Toss gently to mix evenly.
  5. In a separate bowl, whisk together the eggs, milk, garlic powder, salt, and pepper until smooth and well combined.
  6. Pour the egg mixture over the bread mixture. Gently fold everything together to ensure the bread is soaked well. Let it sit for 5–10 minutes to achieve a custardy texture.
  7. Pour the mixture into the prepared baking dish, spreading it out evenly.
  8. Cover loosely with foil and bake for 30 minutes. Remove the foil and bake an additional 15–20 minutes until the top is golden, cheese is bubbly, and a knife inserted comes out clean.
  9. Let the casserole rest for about 5 minutes before slicing. Garnish with fresh parsley or chives if desired.

Notes

Use day-old bread to avoid mushiness. Browning the sausage well adds depth of flavor. Let the bread soak in the egg mixture for 5–10 minutes for a custardy interior. Cover with foil during the first part of baking to retain moisture. Rest casserole before slicing for best texture. For gluten-free, substitute bread with gluten-free bread or cooked quinoa/cauliflower. Dairy-free milk and cheese alternatives can be used but may alter texture.

Nutrition

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