Description
Irresistible Overnight Croissant Breakfast Casserole is the ultimate make-ahead breakfast. Fluffy croissants, savory cooked sausage, melted cheddar cheese, and a creamy egg-milk mixture combine overnight for a rich, comforting morning meal you’ll crave again and again.
Ingredients
- 5 large croissants (preferably day-old), torn into large chunks
- 1 lb (450g) cooked and drained ground sausage
- 1 cup (120g) shredded cheddar cheese
- 6 large eggs
- 2 cups (475ml) whole milk
- 1 teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- Fresh parsley, chopped (optional, for garnish)
- Optional Add-Ins & Swaps:
- Cooked turkey, chicken, or plant-based sausage
- Swiss, Monterey Jack, or mozzarella cheese
- Sautéed spinach, mushrooms, or bell peppers
- Dash of hot sauce or red pepper flakes for a spicy kick
Instructions
- Grease a 9×13 inch baking dish. Tear croissants into large chunks and place in the dish.
- Sprinkle cooked sausage and shredded cheese evenly over the croissants.
- In a medium bowl, whisk together eggs, milk, salt, pepper, garlic powder, and onion powder.
- Pour egg mixture evenly over croissants, cheese, and sausage. Press gently to ensure croissants soak up the mixture.
- Cover with foil and refrigerate overnight (or at least 6 hours).
- Preheat oven to 350°F (175°C). Bake uncovered for 35–40 minutes until golden brown and set.
- Garnish with fresh parsley before serving. Optional: drizzle with hot sauce if desired.
Notes
- Day-old croissants absorb the custard best for a fluffy texture.
- Mix and match cheeses and sausages for variety.
- Vegetables and spices can be added for extra flavor and nutrition.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Breakfast
- Method: Baked
- Cuisine: American