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Cozy Christmas Morning Breakfast Casserole

christmas morning breakfast casserole - featured image

A warm, cheesy breakfast casserole layered with bread, sausage, eggs, and cheese, perfect for holiday mornings and easy to prepare ahead.

Ingredients

Scale
  • 6 cups day-old bread, cubed (white or sourdough preferred)
  • 1 pound breakfast sausage, casing removed and crumbled (mild or spicy)
  • 8 large eggs, room temperature
  • 2 cups whole milk or half-and-half
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 teaspoon dried sage or 2 teaspoons fresh sage, finely chopped
  • 2 cups shredded sharp cheddar cheese
  • Optional: ½ cup shredded mozzarella or Monterey Jack cheese
  • Optional extras: 1 small onion, finely chopped and sautéed
  • Optional extras: 1 cup diced bell peppers (red or green)
  • Fresh parsley for garnish

Instructions

  1. Preheat oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with butter or non-stick spray.
  2. In a large skillet over medium heat, brown the sausage until fully cooked and crumbly, about 8-10 minutes. Add chopped onion and bell peppers halfway through cooking to soften. Drain excess fat and set aside.
  3. In a large bowl, whisk together eggs, milk or half-and-half, salt, black pepper, and sage until smooth and slightly frothy.
  4. Spread cubed bread evenly in the greased baking dish. Sprinkle cooked sausage and veggies evenly over the bread.
  5. Layer shredded cheese on top, covering the surface evenly.
  6. Pour the egg mixture evenly over everything, pressing down gently with a spatula so the bread absorbs the custard. Let sit for about 10 minutes before baking.
  7. Bake for 45-50 minutes until the top is golden brown and custard is set (a knife inserted should come out clean). If cheese browns too fast, cover loosely with foil after 30 minutes.
  8. Let the casserole rest for 5-10 minutes before slicing. Garnish with fresh parsley and serve warm.

Notes

Use day-old or slightly stale bread to avoid sogginess. Brown sausage slowly for better flavor and drain excess fat. Whisk eggs and milk until frothy for a lighter custard. Let casserole sit before baking to soak custard evenly. For make-ahead, assemble without cheese, refrigerate overnight, add cheese and bake in the morning.

Nutrition

Keywords: Christmas breakfast casserole, holiday breakfast, sausage casserole, cheesy breakfast bake, easy breakfast casserole, make-ahead breakfast