why make this recipe
Overnight Croissant Breakfast Casserole is a great dish for busy mornings or for hosting brunch. You prepare it the night before, allowing the flavors to blend beautifully while you sleep. It’s easy to make, and you can customize it with your favorite ingredients. With warm croissants, eggs, and cheese, it’s a delicious way to start the day.
how to make Overnight Croissant Breakfast Casserole
Ingredients:
- 4 croissants, torn into pieces
- 6 eggs
- 2 cups milk
- 1 cup shredded cheese (e.g., cheddar or gruyere)
- 1/2 cup cooked turkey sausage or chicken sausage, crumbled (optional)
- 1/4 cup chopped fresh herbs (e.g., chives, parsley)
- Salt and pepper to taste
- 1/4 teaspoon nutmeg (optional)
Directions:
- Grease a baking dish and preheat your oven to 350°F (175°C).
- In a large bowl, whisk together eggs, milk, salt, pepper, and nutmeg.
- Layer the torn croissants in the baking dish. Add cheese, sausage if using, and herbs.
- Pour the egg mixture over the croissant mixture, making sure it’s well coated.
- Cover the dish with plastic wrap and refrigerate overnight.
- In the morning, remove from the refrigerator and let sit for 20 minutes.
- Bake in the preheated oven for 30-40 minutes, or until set and golden on top.
- Let cool slightly before serving. Enjoy your festive brunch!
how to serve Overnight Croissant Breakfast Casserole
Serve this casserole warm, straight from the oven. You can enjoy it as is or pair it with fresh fruit or yogurt for a complete brunch. It also goes well with coffee or juice for a refreshing drink.
how to store Overnight Croissant Breakfast Casserole
If you have leftovers, store them in an airtight container in the fridge. The casserole can be kept for up to three days. To reheat, simply place it in the oven at 350°F (175°C) for about 15-20 minutes until warmed through.
tips to make Overnight Croissant Breakfast Casserole
- Use day-old croissants for better texture. Fresh croissants may become too soggy.
- Customize the filling by adding your favorite veggies, such as spinach, mushrooms, or bell peppers.
- For a richer flavor, try adding some cream cheese or sour cream to the egg mixture.
variation
Change the cheese type or use different vegetables to adjust the flavor. For a vegetarian version, simply leave out the meat and add more vegetables instead.
FAQs
- Can I make this casserole without meat? Yes, you can easily make this a vegetarian dish by leaving out the meat and adding more veggies if you like.
- Can I freeze Overnight Croissant Breakfast Casserole? Yes, you can freeze it before baking. Just cover the dish tightly with plastic wrap and foil. When you’re ready to bake, thaw it in the refrigerator overnight and bake as usual.
- How long can I keep the leftovers? Leftovers can be stored in the fridge for up to three days. Make sure to keep them in an airtight container.


Overnight Croissant Breakfast Casserole
- Total Time: 60 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian (optional)
Description
A delicious and easy dish prepared the night before, perfect for busy mornings or brunch with warm croissants, eggs, and cheese.
Ingredients
- 4 croissants, torn into pieces
- 6 eggs
- 2 cups milk
- 1 cup shredded cheese (e.g., cheddar or gruyere)
- 1/2 cup cooked turkey sausage or chicken sausage, crumbled (optional)
- 1/4 cup chopped fresh herbs (e.g., chives, parsley)
- Salt and pepper to taste
- 1/4 teaspoon nutmeg (optional)
Instructions
- Grease a baking dish and preheat your oven to 350°F (175°C).
- In a large bowl, whisk together eggs, milk, salt, pepper, and nutmeg.
- Layer the torn croissants in the baking dish. Add cheese, sausage if using, and herbs.
- Pour the egg mixture over the croissant mixture, making sure it’s well coated.
- Cover the dish with plastic wrap and refrigerate overnight.
- In the morning, remove from the refrigerator and let sit for 20 minutes.
- Bake in the preheated oven for 30-40 minutes, or until set and golden on top.
- Let cool slightly before serving.
Notes
Use day-old croissants for better texture. Customize the filling with your favorite vegetables.
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Category: Brunch
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 400
- Sugar: 6g
- Sodium: 600mg
- Fat: 25g
- Saturated Fat: 10g
- Unsaturated Fat: 15g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 18g
- Cholesterol: 210mg

