Overnight Croissant Breakfast Casserole is a delightful dish that brings together the flaky goodness of croissants, creamy eggs, and melted cheese. This casserole is a beautiful centerpiece for any breakfast or brunch, perfect for holiday gatherings or cozy weekend mornings. With its golden-brown top and inviting aroma, it’s a dish that will make your mouth water just by looking at it.
As you take your first bite, the rich flavors blend together for a fantastic sensory experience that is both comforting and satisfying. This article will guide you through the easy steps to create this delicious casserole, offering tips for serving and storing, as well as fun variations to try. Get ready to impress your family and friends with this tasty breakfast treat!
Why You’ll Love This Recipe
- Fresh Ingredients: Made with croissants, eggs, and cheese, every bite is full of fresh flavors.
- Ease of Preparation: Simply assemble the casserole the night before and bake it in the morning.
- Nutrition: Packed with protein and customizable with a variety of veggies and meats.
- Versatility: Perfect for breakfast, brunch, or even a laid-back dinner option.
- Presentation: Stunning and eye-catching, it will be the star of your table.
You’ll find so many reasons to love this casserole!
Preparation and Cooking Time
- Total time: 8 hours 30 minutes
- Preparation time: 15 minutes
- Cooking time: 30-40 minutes
Note that times may vary.
Ingredients You’ll Need
- 6 croissants, torn into pieces
- 6 large eggs
- 2 cups milk
- 1 cup shredded cheese (such as cheddar or mozzarella)
- 1/2 cup cooked and crumbled sausage or bacon (optional)
- 1/4 cup chopped green onions
- Salt and pepper to taste
- Butter for greasing the baking dish
How To Make Overnight Croissant Breakfast Casserole
- Grease a baking dish with butter.
- Place the torn croissant pieces in the dish.
- In a mixing bowl, whisk together the eggs, milk, salt, and pepper.
- Pour the egg mixture over the croissants, ensuring they are well coated.
- Sprinkle cheese, sausage or bacon, and green onions on top.
- Cover the dish with plastic wrap and refrigerate overnight.
- In the morning, preheat the oven to 350°F (175°C).
- Remove the cover and bake for 30-40 minutes, or until the casserole is set and golden on top.
- Allow to cool slightly before serving.

How to Serve
- Presentation: Serve directly from the baking dish for a homey touch.
- Accompaniments: Pair with fresh fruit, yogurt, or a light salad for a balanced meal.
- Portions: Cut into squares for easy serving; perfect for sharing.
- Beverage Pairing: Enjoy with a fresh coffee, tea, or a light juice to complement the meal.
This casserole is sure to please everyone at the table!
Additional Tips
- Flavor Enhancement: Add herbs like thyme or parsley for an extra layer of flavor.
- Customization: Swap in different cheeses or add your favorite vegetables for a twist.
- Serving Suggestions: Drizzle with a bit of hot sauce or serve with a side of avocado for a delicious contrast.
Recipe Variations
- Veggie-Packed Casserole: Add spinach, bell peppers, or mushrooms for a vibrant and nutritious option.
- Sweet Version: Use croissants, eggs, milk, and sprinkle with cinnamon and sugar for a dessert-like breakfast.
- Mexican Twist: Add jalapeños, spicy sausage, and top with salsa for a flavorful kick.
Freezing and Storage
- Storage: Store leftovers in the refrigerator for up to 3 days in an airtight container.
- Freezing: Cover tightly and freeze for up to 2 months. Reheat in the oven for the best texture.
Special Equipment
- Baking dish
- Plastic wrap
- Mixing bowl
- Whisk
- Cutting board
- Knife
FAQ’s
1. Can I use frozen croissants?
Yes, thaw them and tear them into pieces before using them in the casserole.
2. Is this casserole suitable for special diets?
You can customize it by using dairy-free milk and egg substitutes to suit various dietary needs.
3. Can I prepare it ahead of time?
Absolutely! This casserole is designed to be made ahead and cooked the next day.
4. What can I customize in the recipe?
Feel free to add different meats, vegetables, or types of cheese to suit your taste.
5. Can I cook it in a different way?
Yes, you can cook this casserole in an Instant Pot or slow cooker if you prefer.
Conclusion {image_template}
Overnight Croissant Breakfast Casserole is not only easy to make, but it is also flavorful and appealing for any occasion. Made with fresh ingredients, its fluffy texture and rich flavors will delight everyone. Whether for a holiday breakfast or a simple weekend treat, this recipe is sure to impress. Give it a try, and savor the deliciousness!

Overnight Croissant Breakfast Casserole
Ingredients
Method
- Grease a baking dish with butter.
- Place the torn croissant pieces in the dish.
- In a mixing bowl, whisk together the eggs, milk, salt, and pepper.
- Pour the egg mixture over the croissants, ensuring they are well coated.
- Sprinkle cheese, sausage or bacon, and green onions on top.
- Cover the dish with plastic wrap and refrigerate overnight.
- In the morning, preheat the oven to 350°F (175°C).
- Remove the cover and bake for 30-40 minutes, or until the casserole is set and golden on top.
- Allow to cool slightly before serving.






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