Overnight Croissant Breakfast Casserole

Name: Overnight Croissant Breakfast Casserole: A Tasty Delight!
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 6 large croissants, torn into pieces; 8 large eggs; 2 cups milk; 1 cup shredded cheese (cheddar or your choice); 1/2 cup diced ham or cooked bacon (optional); 1/4 cup chopped green onions; Salt and pepper to taste

Posted on August 1, 2025

Breakfast

Introduction to Overnight Croissant Breakfast Casserole

As a busy mom, I know how precious those early morning moments can be. That’s why I absolutely adore this Overnight Croissant Breakfast Casserole. It’s a delightful dish that combines flaky croissants, creamy eggs, and gooey cheese, making it a perfect solution for a weekend brunch or a special family gathering. Imagine waking up to the warm, inviting aroma of breakfast already prepared! This casserole not only saves time but also impresses your loved ones with its deliciousness. Trust me, it’s a game-changer for those hectic mornings when you want to serve something extraordinary without the fuss.

Why You’ll Love This Overnight Croissant Breakfast Casserole

This Overnight Croissant Breakfast Casserole is a true lifesaver for busy mornings. It’s incredibly easy to prepare, allowing you to enjoy a delicious breakfast without the stress. Just mix, refrigerate, and bake! The taste is simply divine, with buttery croissants soaking up the egg mixture, creating a fluffy, savory delight. Plus, it’s versatile—customize it with your favorite ingredients, making it a dish everyone will love. What’s not to adore?

Ingredients for Overnight Croissant Breakfast Casserole

Gathering the right ingredients is the first step to creating this delightful Overnight Croissant Breakfast Casserole. Here’s what you’ll need:

Croissants: Flaky and buttery, these are the star of the dish. They soak up the egg mixture beautifully, adding a rich texture.
Eggs: The binding agent that brings everything together. They create a fluffy, custard-like base that’s simply irresistible.
Milk: Adds creaminess and helps to soften the croissants. You can use whole, skim, or even a dairy-free alternative.
Shredded Cheese: Cheddar is a classic choice, but feel free to experiment with your favorite cheese for a unique flavor.
Diced Ham or Cooked Bacon (optional): For those who enjoy a meaty touch, these add a savory punch. You can also use turkey bacon for a lighter option.
Chopped Green Onions: These provide a fresh, mild onion flavor that brightens the dish. You can substitute with chives if you prefer.
Salt and Pepper: Essential for seasoning, these simple ingredients enhance the overall flavor of the casserole.

Feel free to customize this recipe with your favorite vegetables or meats. The beauty of this Overnight Croissant Breakfast Casserole is its versatility! For exact quantities, check the bottom of the article where you can find everything available for printing.

How to Make Overnight Croissant Breakfast Casserole

Now that you have all your ingredients ready, let’s dive into the steps for making this delightful Overnight Croissant Breakfast Casserole. Each step is simple, and I promise you’ll feel like a kitchen pro in no time!

Step 1: Preheat the Oven

First things first, preheat your oven to 350°F (175°C). Preheating is crucial because it ensures even cooking. You want that casserole to bake perfectly, turning golden brown and fluffy. So, don’t skip this step!

Step 2: Prepare the Egg Mixture

In a large bowl, crack open those eight eggs. Whisk them together until they’re well combined. Then, add in two cups of milk, along with a sprinkle of salt and pepper. This mixture is the heart of your casserole, creating a creamy base that binds everything together. Whisk until it’s smooth and inviting!

Step 3: Combine Croissants and Egg Mixture

Now, it’s time to add the torn croissant pieces to your egg mixture. Gently fold them in, ensuring every piece is coated. This is where the magic happens! The croissants will soak up that delicious egg mixture, making each bite a heavenly experience.

Step 4: Add Cheese and Optional Ingredients

Next, fold in your shredded cheese, diced ham or bacon, and chopped green onions. The cheese adds a melty richness, while the ham or bacon brings a savory depth. If you’re feeling adventurous, throw in some veggies too! Just make sure everything is evenly mixed.

Step 5: Transfer to Baking Dish

Grab a greased baking dish and pour your mixture in. Spread it out evenly, making sure it’s all settled nicely. This will help it bake uniformly. You want every slice to be just as delicious as the last!

Step 6: Refrigerate Overnight

Cover your baking dish and pop it in the fridge overnight. This step is key! Letting the casserole sit allows the croissants to absorb the egg mixture fully, resulting in a rich, custardy texture. Plus, it saves you time in the morning!

Step 7: Bake the Casserole

The next morning, uncover your casserole and place it in the preheated oven. Bake for 30-35 minutes, or until it’s set and golden brown on top. To check for doneness, insert a knife in the center; it should come out clean. Your kitchen will smell heavenly!

Step 8: Serve and Enjoy

Once baked, let the casserole cool for a few minutes before serving. This helps it set a bit more. You can garnish with extra green onions or a sprinkle of cheese if you like. Serve it warm, and watch your family dig in with smiles on their faces!

Tips for Success

Use day-old croissants for better absorption of the egg mixture.
Experiment with different cheeses for unique flavors.
Let the casserole sit for at least 30 minutes after baking for easier slicing.
For a spicier kick, add diced jalapeños or red pepper flakes.
Make it a complete meal by serving with a side of fresh fruit or a light salad.

Equipment Needed

Large Mixing Bowl: A sturdy bowl for whisking your egg mixture. A smaller bowl can work in a pinch.
Whisk: Essential for blending eggs and milk. A fork can also do the job!
Baking Dish: A 9×13 inch dish is ideal. Any oven-safe dish will suffice.
Measuring Cups: Handy for accurate ingredient portions. You can use standard cups if you don’t have measuring ones.
Knife: For chopping ingredients like green onions or ham. A kitchen scissors can be a fun alternative!

Variations

Vegetarian Delight: Skip the meat and add sautéed mushrooms, bell peppers, or spinach for a hearty veggie version.
Cheesy Spin: Try different cheeses like feta, mozzarella, or pepper jack for a unique flavor twist.
Herb Infusion: Add fresh herbs like basil, parsley, or thyme to elevate the taste and aroma.
Sweet Touch: For a sweeter option, mix in some diced apples or berries and a sprinkle of cinnamon.
Gluten-Free: Substitute croissants with gluten-free bread or a gluten-free croissant alternative.

Serving Suggestions

Pair with fresh fruit like berries or sliced melons for a refreshing contrast.
Serve alongside a light green salad drizzled with vinaigrette for a balanced meal.
Complement with a hot cup of coffee or a refreshing mimosa for a brunch vibe.
Garnish with extra green onions or a sprinkle of paprika for a pop of color.

FAQs about Overnight Croissant Breakfast Casserole

Can I use other types of bread instead of croissants?

Absolutely! While croissants give a unique flaky texture, you can use brioche, challah, or even regular bread. Just make sure to adjust the soaking time as needed.

How long can I store leftovers?

Leftovers can be stored in the refrigerator for up to three days. Just reheat in the oven or microwave before serving. It’s a great way to enjoy this Overnight Croissant Breakfast Casserole again!

Can I make this casserole without dairy?

Yes! You can substitute the milk with a dairy-free alternative like almond milk or oat milk. Just ensure your cheese is also dairy-free if you want to keep it completely dairy-free.

Is this casserole suitable for meal prep?

Definitely! This Overnight Croissant Breakfast Casserole is perfect for meal prep. You can assemble it the night before and bake it in the morning, making breakfast a breeze!

Can I freeze the casserole?

Yes, you can freeze the casserole before baking. Just cover it tightly and store it in the freezer for up to two months. Thaw it in the fridge overnight before baking as usual.

Final Thoughts

Creating this Overnight Croissant Breakfast Casserole is more than just cooking; it’s about making memories. The joy of waking up to a warm, delicious breakfast ready to serve is unmatched. It brings family together, sparking laughter and conversation over a shared meal. Plus, the ease of preparation means you can focus on what truly matters—spending quality time with your loved ones. Whether it’s a lazy Sunday or a special occasion, this casserole is sure to impress. So, roll up your sleeves, embrace the joy of cooking, and let this delightful dish become a cherished part of your breakfast tradition!