Dinner

Ham and Cheese Croissant Casserole Recipe

Bylilan Sage December 31, 2025December 31, 2025

Introduction

This Ham and Cheese Croissant Casserole is a delightful twist on a classic breakfast bake. Combining buttery croissants, savory ham, and melty mozzarella, it’s perfect for a cozy brunch or easy dinner. Simple to prepare and full of flavor, this casserole will quickly become a family favorite.

A square piece of layered breakfast casserole sits on a white plate with blue patterns and a silver fork next to it. The casserole has three visible layers: the bottom layer is light yellow and spongy, the middle layer shows pink slices of ham, and the top layer is covered in melted, bubbly white and golden cheese with bits of green herbs sprinkled. Beside the casserole is a golden-brown croissant, adding a toasted texture to the plate. In the background, there is a glass dish of more casserole, some fresh green parsley, and a glass of light brown liquid on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Ingredients

5 croissants, cut into 1-inch pieces
½ pound thin sliced deli ham, cut into 1-inch pieces
8 ounce package shredded mozzarella (divided use)
¼ cup heavy cream
1 cup whole milk
½ teaspoon dried Italian seasoning
3 large eggs
1 teaspoon sea salt
½ teaspoon freshly ground black pepper
Dried parsley (optional garnish)

Instructions

Step 1: Preheat the oven to 350°F. Spray an 11×7-inch baking dish with nonstick cooking spray or coat it with butter.
Step 2: Place the croissant pieces, ham, and half of the shredded mozzarella into the baking dish. Stir gently to distribute the ham and cheese evenly.
Step 3: In a small bowl, whisk together the heavy cream, whole milk, dried Italian seasoning, eggs, sea salt, and black pepper until fully combined.
Step 4: Pour the egg mixture evenly over the croissant and ham mixture in the dish. Press down lightly to help the bread absorb the liquid.
Step 5: Sprinkle the remaining shredded mozzarella cheese over the top of the casserole.
Step 6: Cover the dish with nonstick foil and bake for 30 minutes.
Step 7: Remove the foil and continue baking for another 10 minutes, or until the top is lightly golden and bubbly.
Step 8: Remove from the oven and serve immediately. Garnish with dried parsley if desired.

Tips & Variations

For extra flavor, add diced onions or sautéed mushrooms to the casserole before baking.
Substitute Swiss or cheddar cheese for mozzarella for a different taste profile.
Use leftover or day-old croissants to better absorb the custard mixture without becoming soggy.

Storage

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave for about 1 minute or until warmed through. To retain some crispness, you can reheat in a 350°F oven for 10 minutes.

How to Serve

A white plate with blue floral patterns holds a square slice of baked dish made of three main layers: the bottom layer is yellow, fluffy scrambled eggs; the middle layer includes chunks of pink ham mixed into the eggs; the top layer is a melted, slightly browned cheese layer with some white creamy spots and a few green herb flakes sprinkled on top. A silver fork rests on the right edge of the plate. In the background, a golden croissant sits next to fresh green parsley on a white marbled surface, with more baked dish partially visible behind. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this casserole ahead of time?

Yes, you can assemble the casserole the night before, cover it, and refrigerate. Bake it fresh in the morning, adding a few extra minutes to the baking time if needed.

Can I freeze the leftovers?

While this casserole can be frozen, the texture of croissants may change after thawing. If you freeze leftovers, wrap them tightly and consume within 1 month. Reheat thoroughly before serving.