There’s something undeniably heartwarming about the comforting aroma of baked croissants filling your kitchen, especially when you’re preparing an Overnight Croissant Breakfast Casserole. Just imagine the soft, pillowy layers of croissants melding into a creamy, decadent egg mixture, creating a perfect harmony of flavor and texture. It’s a dish that effortlessly promises to whisk your family into cozy bliss each morning or brighten up a gathering, making it feel like home.
Overnight Croissant Breakfast Casserole
A warm and comforting overnight casserole featuring layers of croissants, eggs, and cheese, perfect for breakfast or brunch.
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Total Time: 45-50 minutes
- Yield: 8 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 4 large croissants, torn into pieces
- 6 large eggs
- 2 cups milk
- 1 cup shredded cheese (e.g., Swiss or cheddar)
- ½ cup cooked turkey breast, diced (optional)
- 1/4 cup granulated sugar
- 1 teaspoon vanilla extract
- 1/2 teaspoon ground cinnamon
- Salt and pepper to taste
- Fresh parsley for garnish (optional)
Instructions
- Grease a 9×13 inch baking dish with butter or cooking spray and lay the torn croissant pieces evenly in the dish.
- In a large bowl, whisk the eggs, milk, sugar, vanilla extract, cinnamon, salt, and pepper until well combined.
- Pour the egg mixture over the croissant pieces and gently press them down to soak.
- Sprinkle shredded cheese over the top and add diced turkey if using.
- Cover with plastic wrap and refrigerate overnight.
- Preheat the oven to 350°F (175°C) in the morning.
- Remove plastic wrap and bake for 30-35 minutes until golden on top.
- Let cool slightly and garnish with fresh parsley before serving.
Notes
Leftovers can be stored in the refrigerator for up to 3 days. For freezing, cover tightly with plastic wrap and foil.
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 5g
- Sodium: 600mg
- Fat: 16g
- Saturated Fat: 7g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 1g
- Protein: 18g
- Cholesterol: 350mg
Let’s Make It Together
Creating this whimsical dish is as simple as pie, yet fully satisfying. You prepare it the night before, allowing the flavors to meld beautifully and simplifying your morning routine. Just mix, pour, refrigerate, and bake—what could be easier?
Ingredients You’ll Need
- 4 large croissants, torn into pieces
- 6 large eggs
- 2 cups milk
- 1 cup shredded cheese (e.g., Swiss or cheddar)
- 1/2 cup cooked turkey, diced (optional)
- 1/4 cup granulated sugar
- 1 teaspoon vanilla extract
- 1/2 teaspoon ground cinnamon
- Salt and pepper to taste
- Fresh parsley for garnish (optional)
Step-by-Step Directions
- Start by greasing a 9×13 inch baking dish with a hint of butter or a light layer of cooking spray. Lay the torn croissant pieces evenly in the dish, creating a fluffy base for your casserole. Make sure to fill every nook, forming a cozy blanket for the rest of the ingredients.
- In a large mixing bowl, whisk together the eggs, milk, sugar, vanilla extract, cinnamon, salt, and pepper. Blend them until the mixture is a beautiful golden hue, echoing the warmth you’re about to bring to your family’s breakfast table.
- Pour this delightful egg mixture over the croissant pieces, ensuring they are generously soaked. Take a moment to gently press the croissants down to help them absorb all the goodness. You want each piece to be infused with that wonderful mixture.
- Now, sprinkle the shredded cheese all over the top! If you’re indulging in the optional diced turkey, this is the perfect time to add it as well. Cover the dish tightly with plastic wrap and place it in the refrigerator overnight, letting those flavors meld and develop.
- When morning rolls around, preheat your oven to 350°F (175°C). Remove the plastic wrap and allow your dish to breathe for a moment. Bake for 30-35 minutes until luscious and golden on top, filling your home with warm, inviting aromas.
- Let it cool slightly, then garnish with fresh parsley if you wish. Serve warm, and savor how nothing beats that first bite, where croissant meets egg and cheese in a glorious embrace.
Nutritional Snapshot
- Serving Size: 1 generous slice
- Calories: 320
- Protein: 18g
- Carbs: 30g
- Fat: 16g
- Fiber: 1g
Packed with protein and fiber, this dish keeps you full and fueled without a heavy feeling, making it perfect for your bustling mornings or a cozy brunch.
Perfect Pairings
This casserole shines on its own but shines even brighter when you pair it with a fresh fruit salad, steamy coffee, or a warm mug of cocoa for the younger ones. Picture a Sunday brunch gathering—perhaps some crispy bacon on the side and mimosas for the adults to enhance the cheer. Every bite and sip creates delightful moments around the table, fostering connections and laughter.
Keep It Fresh
Leftovers can be stored in airtight containers in the refrigerator for up to 3 days. If you’d like to freeze portions, cover them tightly with plastic wrap followed by foil to maintain flavor and texture. When you’re ready to enjoy again, simply reheat in the oven until warmed through, or pop a slice in the microwave for a quick treat.
Betty’s Secrets
- Add a dash of nutmeg alongside the cinnamon for an enhanced warmth that transports you to Grandma’s kitchen.
- If you wish to experiment, try replacing half of the milk with cream for an extra indulgent twist.
- For a hint of freshness, fold in a handful of spinach or kale before baking; it adds a lovely depth of flavor.
Creative Twists
- Swap out the turkey for crispy cooked bacon or even sautéed vegetables to make it vegetarian-friendly.
- For a taste of autumn, mix in some diced apples and a sprinkle of pumpkin spice instead of cinnamon.
- During the holiday season, consider adding cranberries and pecans for a festive flair that brings joy to every dinner table.
Your Questions Answered
How can I prepare the Overnight Croissant Breakfast Casserole in advance? You can assemble it the night before and let it rest in the fridge, ready to bake first thing in the morning. This makes mornings a breeze!
Can I use day-old croissants for this recipe? Absolutely! Day-old croissants not only work beautifully but also soak up the egg mixture perfectly, creating a luscious texture.
Is it possible to make this casserole gluten-free? Yes! Using gluten-free croissants combined with alternative dairy options can make this dish suitable for gluten-free diets.
How long can leftovers last? Stored properly in the refrigerator, leftovers can be enjoyed for up to three days, allowing you to savor this deliciousness again and again.

