Print

Christmas Breakfast Casserole Recipe

4.6 from 435 reviews

This Christmas Breakfast Casserole is a hearty, savory dish perfect for holiday mornings. It combines flavorful breakfast sausage, sautéed bell peppers and onions, cubed white bread, shredded cheddar cheese, and a rich egg and milk custard. Prepared ahead and baked until golden, this casserole offers a delicious and comforting way to start your festive day.

Ingredients

Scale

Sausage and Vegetables

  • 1 pound breakfast sausage
  • 1 small onion, diced
  • 1 green bell pepper, chopped
  • 1 red bell pepper, chopped

Bread and Cheese

  • 6 slices white bread, cubed
  • 2 cups shredded cheddar cheese

Egg Mixture

  • 10 large eggs
  • 2 cups whole milk
  • 1 teaspoon salt
  • ½ teaspoon black pepper

Instructions

  1. Cook the sausage: In a skillet over medium heat, cook the breakfast sausage until browned and crumbly, about 6-8 minutes. Drain excess fat if necessary.
  2. Sauté vegetables: Add the diced onion, chopped green bell pepper, and chopped red bell pepper to the skillet with the sausage. Sauté lightly until the vegetables are tender, approximately 3-4 minutes.
  3. Prepare the baking dish: Grease a large baking dish with butter or cooking spray. Evenly layer the cubed white bread on the bottom of the dish.
  4. Add sausage and vegetables: Spread the cooked sausage and sautéed vegetables evenly over the bread layer.
  5. Top with cheese: Sprinkle the shredded cheddar cheese evenly across the top of the sausage and vegetable layer.
  6. Mix egg custard: In a large mixing bowl, whisk together the eggs, whole milk, salt, and black pepper until well combined and smooth.
  7. Combine and soak: Pour the egg mixture evenly over the casserole layers, making sure the bread soaks up the custard thoroughly.
  8. Refrigerate (optional): Cover the baking dish with plastic wrap or foil and refrigerate overnight if desired, allowing flavors to meld and bread to absorb the custard.
  9. Preheat oven: When ready to bake, preheat the oven to 350°F (175°C).
  10. Bake the casserole: Uncover the casserole and bake in the preheated oven for 45 minutes, or until the top is golden brown and the center is set.

Notes

  • For a vegetarian version, substitute the sausage with a plant-based sausage alternative or omit it and add extra vegetables.
  • Feel free to use whole wheat or gluten-free bread if desired.
  • This casserole can be assembled the night before and refrigerated for convenience on busy mornings.
  • Ensure the casserole is thoroughly cooked and set before serving to avoid any runny eggs.
  • Leftovers store well in the refrigerator for up to 3 days and can be reheated in the oven or microwave.

Keywords: Christmas breakfast, breakfast casserole, sausage casserole, holiday breakfast, savory casserole, egg casserole, easy breakfast recipe