Description
This Martha Stewart Christmas Breakfast Casserole is the ultimate holiday morning make-ahead breakfast. Loaded with bread, sausage, eggs, milk, and melty cheddar cheese, it bakes into a golden, savory, comforting casserole perfect for feeding a crowd on Christmas morning. Assemble it the night before, refrigerate, and simply bake in the morning for a stress-free, hearty, festive brunch!
Ingredients
Scale
- 8 slices day-old bread (French, sourdough, or white sandwich bread)
- 1 pound breakfast sausage (pork or turkey)
- 2 cups shredded sharp cheddar cheese
- 10 large eggs
- 2 1/2 cups whole milk
- 1 teaspoon dry mustard powder
- 1 teaspoon salt
- 1/2 teaspoon ground black pepper
Optional Add-Ins:
- Sautéed onions
- Diced bell peppers
- Chopped spinach
- Mushrooms
Instructions
- Cook sausage: In a skillet over medium heat, cook sausage until browned. Drain excess fat.
- Prepare baking dish: Spray a 9×13-inch baking dish with nonstick spray. Layer cubed bread evenly on the bottom.
- Layer ingredients: Sprinkle cooked sausage over the bread, then top with shredded cheddar cheese.
- Make custard: In a large bowl, whisk eggs, milk, mustard powder, salt, and pepper.
- Combine: Pour the egg mixture evenly over the casserole. Press gently so bread absorbs liquid.
- Chill overnight: Cover with foil and refrigerate overnight.
- Bake: Preheat oven to 350°F (175°C). Let casserole sit at room temperature for 20 minutes. Bake covered for 45 minutes, then uncover and bake 15–20 minutes until golden and puffed.
Notes
- Use slightly stale bread or lightly toast fresh bread for best texture.
- Refrigerating overnight allows flavors to blend and prevents sogginess.
- Let the casserole warm slightly before baking to ensure even cooking.
- Customize with veggies, different cheeses, or ham/bacon instead of sausage.
- Can be baked ahead and reheated on Christmas morning.
- Prep Time: 20 minutes
- Cook Time: 60 minutes
- Category: Breakfast
- Method: Bake
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 410
- Sugar: 6g
- Sodium: 780mg
- Fat: 27g
- Saturated Fat: 11g
- Unsaturated Fat: 14g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 1g
- Protein: 25g
- Cholesterol: 215mg
Keywords: Christmas breakfast casserole, make ahead Christmas breakfast, holiday morning casserole, breakfast strata, Martha Stewart breakfast casserole