Indulge in a delightful start to your day with the Overnight Cheesy Bacon Croissant Breakfast Casserole. This dish is perfect for brunch gatherings, holiday mornings, or lazy weekends. Its layers of buttery croissants, savory bacon, and creamy cheese create an irresistible combination that will please everyone at the table. The best part? You can prepare it the night before, making your morning routine smooth and stress-free.
Why You’ll Love This Recipe
- Easy Preparation: With minimal effort, you can whip up this casserole the night before and let it work its magic in the refrigerator.
- Delicious Flavor: The combination of crispy bacon and melted cheese guarantees that each bite is packed with flavor.
- Versatile Serving Options: Perfect for breakfast, brunch, or even a cozy dinner. Serve it with fresh fruit or a simple salad for a complete meal.
- Crowd-Pleaser: This recipe makes 12 servings, making it ideal for feeding family and friends during gatherings or holidays.
- Customizable Ingredients: Feel free to swap out ingredients like cheese or add vegetables to tailor it to your taste preferences.
Tools and Preparation
Preparing the Overnight Cheesy Bacon Croissant Breakfast Casserole requires just a few essential tools. Having the right equipment ensures smooth cooking and perfect results.
Essential Tools and Equipment
- Baking dish (9×13 inch)
- Skillet (10-12 inch)
- Whisk
- Parchment paper
- Foil
Importance of Each Tool
- Baking dish: A 9×13 inch baking dish is crucial for holding all the delicious layers of this casserole while allowing for even baking.
- Skillet: A good-quality skillet helps to cook the bacon evenly and facilitates easy sautéing of onions.

Ingredients
For the Base
- 1 pound croissants, halved lengthwise (about 5-7 small/medium croissants) (see note)
For the Filling
- 8 to 10 slices bacon, chopped (I use thick-sliced)
- 1/2 cup diced shallot or red onion
- 2 cups shredded cheddar, gruyere or swiss cheese (see note)
For the Custard Mixture
- 9 large eggs
- 2 cups milk (see note)
- 1 cup heavy cream
- 1 1/2 teaspoons salt
- 1/4 teaspoon black pepper
How to Make Overnight Cheesy Bacon Croissant Breakfast Casserole
Step 1: Preheat the Oven
Preheat your oven to 350°F. Spread the halved croissants cut side up on a parchment-lined half-sheet pan. Toast them in the oven until golden, about 10-12 minutes. Keep an eye on them to prevent burning. Let them cool afterward.
Step 2: Prepare Croissants
Tear the toasted croissants into large bite-sized pieces. Evenly place them in the bottom of a greased 9×13-inch baking dish.
Step 3: Cook Bacon
In a skillet set over medium heat, cook the chopped bacon until it becomes crisp. Use a slotted spoon to transfer the bacon onto a paper towel-lined plate. Drain all but 1 tablespoon of bacon grease from the skillet.
Step 4: Sauté Onions
Add diced shallots (or red onion) to the skillet along with a pinch of salt and pepper. Cook for about 3-5 minutes until they turn translucent.
Step 5: Assemble Ingredients
Sprinkle cooked bacon and sautéed onions over the torn croissants. Follow this by adding shredded cheese on top. You can either toss these ingredients lightly or leave them layered.
Step 6: Create Custard Mixture
In a medium bowl, whisk together eggs, milk, heavy cream, salt, and pepper until well combined. Pour this mixture evenly over the casserole layers.
Step 7: Refrigerate
Cover your baking dish and refrigerate for at least 4 hours or up to 12 hours. Avoid leaving it longer than that to prevent disintegration of croissants.
Step 8: Bake
When ready to bake, preheat your oven again to 350°F. Remove cover from casserole and place it on a foil-lined sheet pan (to catch any overflow). Bake for about 45-50 minutes until golden brown, puffy, and firm when touched. Allow it to stand for about 10-15 minutes before serving.
How to Serve Overnight Cheesy Bacon Croissant Breakfast Casserole
Serving the Overnight Cheesy Bacon Croissant Breakfast Casserole is a delightful experience that brings warmth and comfort to any breakfast table. This casserole is perfect for brunch gatherings, family breakfasts, or holiday celebrations. Here are some creative ways to serve it.
With Fresh Fruit
- A side of fresh fruit adds a refreshing contrast. Consider serving sliced strawberries, blueberries, or a mixed fruit salad.
Drizzled with Maple Syrup
- For a touch of sweetness, drizzle pure maple syrup over each serving. It pairs beautifully with the rich flavors of the casserole.
Accompanied by Yogurt
- Serve with a dollop of Greek yogurt on the side for added creaminess and protein. You can flavor the yogurt with honey or vanilla for extra taste.
With Avocado Slices
- Add slices of ripe avocado for a creamy texture and healthy fats. It complements the savory flavors wonderfully.
Topped with Fresh Herbs
- Garnish each serving with freshly chopped chives or parsley to add a burst of color and freshness. It enhances both presentation and flavor.
How to Perfect Overnight Cheesy Bacon Croissant Breakfast Casserole
To ensure your Overnight Cheesy Bacon Croissant Breakfast Casserole turns out perfectly every time, consider these helpful tips.
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Use Stale Croissants: Slightly stale croissants absorb the egg mixture better, resulting in a richer texture.
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Customize Cheese Options: Feel free to mix cheeses! Combining cheddar with gruyere or mozzarella can elevate the flavor profile.
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Adjust Seasoning: Taste the egg mixture before pouring it over the casserole. Adjust salt and pepper according to your preference.
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Let It Rest: Allowing the casserole to rest after baking helps it hold its shape better when cutting into servings.
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Check for Doneness: The casserole should be puffed and golden on top. An inserted knife should come out clean when it’s fully baked.
Best Side Dishes for Overnight Cheesy Bacon Croissant Breakfast Casserole
Pairing your Overnight Cheesy Bacon Croissant Breakfast Casserole with complementary side dishes can enhance your breakfast experience. Here are some delicious options you might consider:
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Crispy Hash Browns: Golden-brown hash browns provide a satisfying crunch that pairs well with the soft casserole.
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Sautéed Spinach: Lightly sautéed spinach adds color and nutrients; season with garlic for an extra kick.
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Fruit Smoothie: A refreshing fruit smoothie made from bananas and berries can balance out the savory flavors.
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Breakfast Sausages: Turkey or chicken sausages offer a hearty side that rounds out your meal nicely.
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Mixed Green Salad: A light salad dressed in vinaigrette can provide a fresh contrast to the richness of the casserole.
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Oven-Roasted Tomatoes: Roasting tomatoes brings out their natural sweetness, making them a delightful accompaniment.
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Creamy Polenta: A bowl of creamy polenta can serve as a comforting base alongside your casserole.
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Granola Parfait: Layer granola with yogurt and berries for a crunchy, sweet addition that complements breakfast perfectly.
Common Mistakes to Avoid
When making the Overnight Cheesy Bacon Croissant Breakfast Casserole, certain pitfalls can affect your results. Here are some common mistakes to watch out for.
- Not using stale croissants: Fresh croissants may become too soggy. Ensure your croissants are a day or two old for the best texture.
- Skipping the refrigeration step: Allowing the casserole to sit overnight helps flavors meld and ensures proper texture. Don’t rush this crucial step!
- Overcooking the bacon: Cook bacon until crisp but not burnt. Overcooked bacon can become chewy and detract from the overall dish.
- Ignoring the egg mixture consistency: Whisk eggs, milk, and cream thoroughly. An uneven mixture can lead to inconsistent cooking and texture.
- Not letting it rest post-baking: Letting the casserole cool for 10-15 minutes helps set it and makes serving easier.
Refrigerator Storage
- Store leftovers in an airtight container.
- Refrigerate for up to 3 days for optimal freshness.
Freezing Overnight Cheesy Bacon Croissant Breakfast Casserole
- Wrap portions tightly in plastic wrap or aluminum foil.
- Freeze for up to 2 months; label with dates for easy tracking.
Reheating Overnight Cheesy Bacon Croissant Breakfast Casserole
- Oven: Preheat to 350°F (175°C). Cover with foil and heat for about 20-25 minutes or until warmed through.
- Microwave: Place a portion on a microwave-safe plate. Heat on medium power for about 1-2 minutes, checking regularly.
- Stovetop: Heat slices in a non-stick skillet over low heat until warmed through, flipping occasionally to avoid burning.
Frequently Asked Questions
What can I substitute for bacon in the Overnight Cheesy Bacon Croissant Breakfast Casserole?
You can use turkey bacon or cooked chicken sausage as alternatives that still provide a savory kick without using pork.
Can I make this casserole ahead of time?
Yes! The Overnight Cheesy Bacon Croissant Breakfast Casserole is perfect for preparing in advance. Just refrigerate it overnight before baking.
How do I customize my Overnight Cheesy Bacon Croissant Breakfast Casserole?
Feel free to add vegetables like spinach or bell peppers, or try different cheeses such as feta or mozzarella for unique flavors!
Can I use different types of bread instead of croissants?
Certainly! Other types of bread like brioche or challah work wonderfully in this recipe while offering a different texture and taste.
How should I store leftovers of the casserole?
Leftovers should be stored in an airtight container in the refrigerator and consumed within three days for best quality.
Final Thoughts
The Overnight Cheesy Bacon Croissant Breakfast Casserole is a delightful blend of flavors and textures that makes breakfast special. Its versatility allows you to customize ingredients based on your preferences, making it an ideal choice for any occasion. Give it a try and impress your family with this easy yet delicious dish!
Overnight Cheesy Turkey Croissant Breakfast Casserole
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 10 minutes
- Yield: Serves 12 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
Description
Indulge in a deliciously creamy and cheesy Overnight Cheesy Turkey Croissant Breakfast Casserole that transforms your mornings into a delightful experience. Perfect for brunch gatherings, holiday celebrations, or cozy family breakfasts, this dish features buttery croissants layered with crispy turkey bacon and melted cheese, all soaked in a rich custard mixture. The beauty of this casserole lies in its make-ahead convenience—prepare it the night before to enjoy a stress-free morning. Just pop it in the oven, and you’ll have a warm, mouthwatering meal ready to impress your guests or family.
Ingredients
- 1 pound croissants, halved lengthwise
- 8 to 10 slices turkey bacon, chopped
- 1/2 cup diced shallot or red onion
- 2 cups shredded cheddar, gruyere or swiss cheese
- 9 large eggs
- 2 cups milk
- 1 cup heavy cream
- Salt and pepper
Instructions
- Preheat oven to 350°F. Toast croissants on a parchment-lined pan for 10-12 minutes until golden.
- Tear toasted croissants into bite-sized pieces and layer them in a greased baking dish.
- Cook turkey bacon in a skillet until crisp; transfer to paper towels to drain.
- Sauté shallots in the remaining bacon grease until translucent.
- Layer the bacon and sautéed onions over the croissants, then sprinkle with cheese.
- Whisk together eggs, milk, heavy cream, salt, and pepper; pour over the casserole layers.
- Cover and refrigerate for at least 4 hours or overnight.
- Bake uncovered for 45-50 minutes until golden brown and firm; let cool for 10-15 minutes before serving.
Nutrition
- Serving Size: 1 slice (150g)
- Calories: 360
- Sugar: 4g
- Sodium: 680mg
- Fat: 25g
- Saturated Fat: 12g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 1g
- Protein: 14g
- Cholesterol: 215mg