Why Make This Recipe
Overnight Croissant Breakfast Casserole is a perfect dish for busy mornings. You can prepare it the night before, making your morning routine much easier. It combines the deliciousness of buttery croissants with eggs, cheese, and your choice of meats or vegetables. This satisfying breakfast is great for family gatherings, brunch with friends, or even meal prep for the week ahead.
How to Make Overnight Croissant Breakfast Casserole
Ingredients
- 6 croissants, torn into pieces
- 8 large eggs
- 2 cups milk
- 1 cup shredded cheese (e.g., cheddar or gruyere)
- 1/2 cup cooked and crumbled bacon or sausage (optional)
- 1/4 cup chopped fresh chives or parsley
- Salt and pepper to taste
Directions
- Grease a baking dish and layer the torn croissant pieces in the bottom.
- In a mixing bowl, whisk together the eggs, milk, salt, and pepper.
- Pour the egg mixture over the croissants, ensuring even coverage.
- Sprinkle the cheese, meat (if using), and herbs on top.
- Cover and refrigerate overnight.
- Preheat the oven to 350°F (175°C).
- Bake for 30-35 minutes, or until the casserole is set and golden.
- Allow to cool slightly before serving.
How to Serve Overnight Croissant Breakfast Casserole
Serve the casserole warm, straight from the oven. You can enjoy it as is or pair it with fresh fruit or a simple green salad. It also goes well with coffee or juice, making it a delightful breakfast option.
How to Store Overnight Croissant Breakfast Casserole
After the casserole has cooled, you can store leftovers in an airtight container in the refrigerator. It will stay fresh for up to 3 days. To reheat, simply place it in the microwave or oven until warmed through.
Tips to Make Overnight Croissant Breakfast Casserole
- Use stale or day-old croissants for better texture.
- Customize your casserole by adding different ingredients like spinach, tomatoes, or bell peppers.
- If you like a little spice, consider adding jalapeños or hot sauce to the egg mixture.
Variation
For a vegetarian version, simply omit the meat and add extra vegetables or different types of cheese. This allows everyone to enjoy the casserole, regardless of their dietary preferences.
FAQs
1. Can I use other types of bread?
Yes, you can use other types of bread, such as brioche or French bread. Just make sure to adjust the cooking time if necessary.
2. Can I make this casserole without eggs?
You can try using a mixture of silken tofu or chickpea flour with water as an egg substitute, but it may alter the texture.
3. How long can I keep leftovers?
Leftovers can be stored in the refrigerator for up to 3 days. You can also freeze the casserole before baking it for longer storage.

Overnight Croissant Breakfast Casserole
Ingredients
Method
- Grease a baking dish and layer the torn croissant pieces in the bottom.
- In a mixing bowl, whisk together the eggs, milk, salt, and pepper.
- Pour the egg mixture over the croissants, ensuring even coverage.
- Sprinkle the cheese, meat (if using), and herbs on top.
- Cover and refrigerate overnight.
- Preheat the oven to 350°F (175°C).
- Bake for 30-35 minutes, or until the casserole is set and golden.
- Allow to cool slightly before serving.