OVERNIGHT CROISSANT BREAKFAST CASSEROLE BAKE WITH GRAVY
This overnight croissant breakfast casserole bake is a hearty, comforting dish featuring flaky croissants, eggs, sausage, and cheese, baked overnight for easy mornings. Served with creamy gravy, it’s perfect for family brunches and special occasions.
Ingredients
For the Casserole:
- 6 large croissants cut into 1-inch pieces
- 1 lb breakfast sausage cooked and crumbled
- 8 large eggs
- 2 cups milk
- 1 cup shredded cheddar cheese
- 1 teaspoon Dijon mustard
- ½ teaspoon salt
- ¼ teaspoon black pepper
For the Gravy:
- 2 tablespoons unsalted butter
- 2 tablespoons all-purpose flour
- 2 cups milk
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¼ teaspoon garlic powder optional
Instructions
Prepare the Casserole:
- Grease a 9x13-inch baking dish. Spread croissant pieces evenly in the dish. Sprinkle cooked sausage and cheddar cheese over the croissants.
Mix Custard:
- In a large bowl, whisk together eggs, milk, Dijon mustard, salt, and pepper. Pour evenly over the croissant mixture. Press gently to soak.
Chill Overnight:
- Cover the dish and refrigerate overnight or for at least 6 hours.
Bake the Casserole:
- Preheat oven to 350°F (175°C). Bake uncovered for 40–45 minutes, until set and golden on top.
Make the Gravy:
- While the casserole bakes, melt butter in a saucepan over medium heat. Whisk in flour and cook 1–2 minutes until bubbly. Gradually whisk in milk, stirring constantly until thickened. Season with salt, pepper, and garlic powder if using.
Serve:
- Serve the casserole warm, topped with creamy gravy.
Notes
Make Ahead:
Prepare the casserole the night before and refrigerate. Gravy can be made fresh or reheated. Customizing the Flavor:
Add sautéed onions or bell peppers for extra flavor. Swap cheddar for Swiss or pepper jack cheese. Serving Suggestions:
Pair with fresh fruit or a side salad for a complete brunch. Allergy-Friendly Options:
Use plant-based sausage and dairy-free milk and cheese for a vegan-friendly version. Storage Tips:
Store leftovers covered in the refrigerator for up to 3 days. Reheat gently in the oven or microwave.
Prepare the casserole the night before and refrigerate. Gravy can be made fresh or reheated. Customizing the Flavor:
Add sautéed onions or bell peppers for extra flavor. Swap cheddar for Swiss or pepper jack cheese. Serving Suggestions:
Pair with fresh fruit or a side salad for a complete brunch. Allergy-Friendly Options:
Use plant-based sausage and dairy-free milk and cheese for a vegan-friendly version. Storage Tips:
Store leftovers covered in the refrigerator for up to 3 days. Reheat gently in the oven or microwave.