Ham Cheese Croissant Breakfast Casserole Recipe That Feeds a Crowd
A ham cheese croissant breakfast casserole recipe packs pure comfort when you need something special for morning gatherings.
Buttery pastry layers soak up a savory custard base while melted cheese creates pockets of golden goodness throughout.
The dish works beautifully for holidays, weekend brunches, or anytime you want to feed a crowd without spending hours in the kitchen.
Most of the preparation happens the night before, which means less stress when guests arrive.
Each spoonful offers that perfect balance of richness and satisfaction that makes breakfast feel like an occasion.
Everyone at the table will ask for seconds, and the empty pan speaks volumes.
Start making this showstopper tonight so tomorrow's breakfast becomes the highlight of the day.
Reasons a Ham and Cheese Croissant Casserole Feels Brunch-Ready
Buttery Croissants Ham And Cheese In Every Bite
Main Ingredients:Dairy Components:Seasoning Blend:Optional Enhancers:Baking Dishes and Tools for Croissant Casserole
Methods for the Layer, Soak, and Bake Croissant Method
Prepare Baking Dish
Grab your 9×13-inch baking dish and generously grease it with butter or cooking spray. Tear 4 large croissants (about 8 ounces) into bite-sized pieces that are roughly 1-inch chunks. Spread these pieces evenly across the bottom of the dish.
Layer Ham and Cheese
Sprinkle 1 1/2 cups diced ham across the croissant pieces. Then cover the ham with 1 1/2 cups shredded cheddar cheese, making sure you distribute both ingredients evenly so every bite will have some.
Prepare Egg Mixture
Grab a large mixing bowl and whisk together the following ingredients until they’re completely smooth:
Soak the Croissants
Pour the egg mixture slowly and evenly over the croissants, ham, and cheese. Use your hands or a spatula to gently press down on the croissants, helping them absorb the liquid. Make sure every piece gets coated.
Refrigerate
Cover the baking dish with plastic wrap and refrigerate for at least 30 minutes. This helps the croissants soak up all those delicious flavors. For an even better result, you can leave it overnight.
Prepare for Baking
Remove the casserole from the refrigerator and let it sit at room temperature for 10 minutes. Preheat your oven to exactly 375°F (190°C).
Bake the Casserole
Cover the dish with aluminum foil and bake for 30 minutes. Then remove the foil and continue baking for another 10-15 minutes until the top turns a beautiful golden brown and the center feels set when you gently shake the dish.
Serve and Enjoy
Let the casserole cool for about 5 minutes before cutting. If you want to add a fresh touch, sprinkle some chopped green onions or parsley on top. Serve warm and watch everyone dig in with excitement!
Custard Tips for Soft Centers and Crisp Tops
Breakfast Casserole Flips For Ham And Cheese Croissants
Comforting Brunch Plating For Croissant Casserole
Morning Casserole Freshness Standards For Breakfast Bake
Breakfast Casserole Q&A and Holiday Prep Tips
Can I use stale croissants for this recipe?
Absolutely! Stale croissants work perfectly because they absorb the egg mixture better and create a more custardy texture in your casserole.
What type of ham works best?
Deli-style ham or leftover baked ham both work great. Just dice the ham into small, uniform pieces so it distributes evenly throughout the casserole.
Do I need to use both milk and heavy cream?
The combination creates a rich, creamy texture. But if you prefer, you can substitute with whole milk or half-and-half for a lighter version.
Can this casserole be frozen?
Yes! Prepare the casserole, wrap tightly in plastic and foil, and freeze for up to 3 months. Thaw overnight in the refrigerator before baking.
Is Dijon mustard mandatory?
Not at all. Dijon adds depth, but you can skip it or substitute with yellow mustard if that’s what your pantry has on hand.
How do I know when the casserole is fully cooked?
The center should be set and not jiggly, and the top should be golden brown. A knife inserted in the center should come out clean.
Ham Cheese Croissant Breakfast Casserole Recipe
- Total Time: 1 hour 25-30 minutes
- Yield: 6 1x
Description
Perfecting Ham Cheese Croissant takes zero fancy skills – just grab some flaky pastry, pile on salty ham slices, and sprinkle sharp cheese before a quick oven bake that brings delicious European cafe charm right to your kitchen counter.
Ingredients
Protein & Base:
- 6 large eggs
- 1 ½ cups diced ham
- 4 large croissants
Dairy & Cheese:
- 1 ½ cups shredded cheddar cheese
- ½ cup heavy cream
- 1 ½ cups milk
Seasonings & Optional Add-Ins:
- 1 teaspoon Dijon mustard
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ½ cup diced bell peppers
- ¼ cup chopped green onions
- ½ teaspoon red pepper flakes
Instructions
- Rip 4 large croissants into bite-sized chunks, spreading them across a greased 9×13-inch baking dish to create an even base for your breakfast casserole.
- Allow fresh croissants to air-dry for several hours, helping them better absorb the upcoming egg mixture.
- Scatter 1½ cups diced ham across the croissant pieces, ensuring uniform coverage of your base layer.
- Generously distribute 1½ cups shredded cheddar cheese over the ham, creating a rich, melty topping.
- Whisk 6 large eggs, 1½ cups whole milk, ½ cup heavy cream, 1 teaspoon Dijon mustard, ½ teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon salt, and ¼ teaspoon black pepper in a large bowl until completely blended.
- Pour the egg mixture slowly over the croissants, ensuring every piece gets thoroughly coated with the liquid.
- Gently press down on the croissants to help them absorb the egg mixture more effectively.
- Refrigerate the casserole, covered with plastic wrap, for a minimum of 30 minutes to enhance flavor absorption.
- Heat your oven to 375°F (190°C), preparing for the baking process.
- Remove the casserole from the refrigerator and let it rest at room temperature for 10 minutes before baking.
- Cover the dish with aluminum foil and bake for 30 minutes, then uncover and continue baking for an additional 10-15 minutes until the top turns golden brown and the center sets completely.
- Allow the casserole to cool for 5 minutes after removing from the oven, which helps it maintain structural integrity when serving.
- Optional: Sprinkle chopped green onions or fresh parsley on top for added color and fresh flavor before serving warm.
Notes
- Selecting slightly stale croissants helps them soak up the egg mixture without becoming soggy, creating a perfect texture.
- Letting the casserole rest in the refrigerator allows the flavors to meld and the croissants to fully absorb the liquid, making each bite more delicious.
- For a lighter version, substitute half-and-half for heavy cream and use lean ham to reduce overall calories.
- Experiment with different cheese varieties like gruyère or sharp cheddar to customize the flavor profile and make the dish your own.
- Prep Time: 45 minutes
- Cook Time: 40-45 minutes
- Category: Casseroles
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 6
- Calories: 420 kcal
- Sugar: 4 g
- Sodium: 720 mg
- Fat: 28 g
- Saturated Fat: 14 g
- Unsaturated Fat: 12 g
- Trans Fat: 0.5 g
- Carbohydrates: 25 g
- Fiber: 2 g
- Protein: 22 g
- Cholesterol: 210 mg



Daniel Navarro
Culinary Content Director
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Daniel writes about bold flavors, chef-driven dishes, and the kind of restaurant moments that turn tacos, mezcal, and shared plates into a night worth repeating.