Overnight Croissant Breakfast Casserole
Golden and buttery croissants soaked in a rich egg custard come together in this Overnight Croissant Breakfast Casserole to create comfort on a plate. Luxuriously soft in the center with a slight crunch around the edges, this make-ahead breakfast is perfect for brunch, holidays, or even busy weekdays.
Prep Time 15 minutes mins
Cook Time 45 minutes mins
Total Time 1 hour hr
Course Breakfast
Cuisine American
Servings 8 servings
Calories 410 kcal
- 6 large croissants
- 8 large eggs
- 2 cups whole milk
- 1 cup heavy cream
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 8 slices cooked bacon or 1 cup cooked breakfast sausage
- 1 teaspoon salt
- 1 teaspoon ground black pepper
- 1 teaspoon dry mustard powder
- 2 tablespoons chopped chives
Lightly grease a 9 by 13 inch baking dish with butter or nonstick spray.
Slice croissants into large chunks and layer evenly in the baking dish.
Chop cooked bacon or sausage and sprinkle evenly over the croissants.
In a large mixing bowl, whisk together eggs, milk, cream, salt, pepper, and mustard powder until fully combined.
Stir in shredded cheddar and mozzarella cheese.
Pour egg mixture evenly over the croissants and bacon. Press down lightly to ensure the croissant pieces soak up the custard.
Sprinkle chopped chives on top.
Cover the dish tightly with aluminum foil and refrigerate overnight or for at least 6 hours.
When ready to bake, preheat the oven to 350 degrees Fahrenheit.
Remove casserole from the fridge and let sit at room temperature for 20 minutes.
Bake covered for 30 minutes. Remove foil and bake uncovered for another 15 minutes or until the top is golden brown and the center is set.
Let rest for 5 to 10 minutes before slicing and serving.
Calories: 410kcalCarbohydrates: 22gProtein: 17gFat: 29gSodium: 650mgFiber: 1gSugar: 4g
Keyword croissant breakfast casserole, overnight breakfast casserole, make-ahead brunch recipe, brunch, American