Description
Flaky croissants layered with savory ham, gooey cheese, and a rich egg custard—this make-ahead breakfast casserole is perfect for brunch, holidays, or feeding a crowd. Easy to prepare and customizable, it’s a delicious way to start the day with a warm, satisfying dish.
Ingredients
Croissant Layer
- 6 large croissants, torn into pieces
Meat and Cheese
- 1 ½ cups diced ham
- 2 cups shredded Swiss or cheddar cheese
Custard Mixture
- 6 large eggs
- 2 cups milk or half-and-half
- 1 tsp Dijon mustard (optional)
- ½ tsp garlic powder
- Salt and pepper, to taste
Garnish
- Chopped chives or parsley (for garnish)
Instructions
- Prepare the Baking Dish: Grease a 9×13” baking dish thoroughly to prevent sticking and ensure easy serving after baking.
- Layer Croissants: Tear the croissants into pieces and layer them evenly in the prepared baking dish, creating an even base layer for the casserole.
- Add Ham and Cheese: Sprinkle the diced ham and shredded Swiss or cheddar cheese evenly over the croissant pieces for balanced flavor throughout.
- Mix Custard: In a large bowl, whisk together the eggs, milk or half-and-half, Dijon mustard (if using), garlic powder, salt, and pepper until smooth and well combined.
- Combine: Pour the custard mixture evenly over the croissant, ham, and cheese layers. Gently press down to help the croissants soak up the custard.
- Chill: Cover the casserole with plastic wrap or foil and refrigerate for at least 1 hour or overnight. This soaking step enhances the texture and flavors.
- Bake: Preheat the oven to 350°F (175°C). Remove the casserole from the refrigerator and bake uncovered for 35–40 minutes until golden brown and set in the center.
- Serve: Let the casserole cool slightly before garnishing with chopped chives or parsley. Serve warm and enjoy your hearty brunch dish.
Notes
- You can substitute ham with turkey, bacon, or sausage to change the flavor profile.
- While you can bake immediately, soaking the casserole for at least an hour improves texture and flavor penetration.
- This casserole freezes well both before and after baking, making it convenient for meal prep.
- Prep Time: 15 mins
- Cook Time: 40 mins
- Category: Breakfast, Brunch, Casserole
- Method: Baking
- Cuisine: American
