Ham and Cheese Croissant Casserole Recipe

5 from 4 votes

Ham and Cheese Croissant Casserole Recipe

This Ham and Cheese Croissant Casserole Recipe is the ultimate make-ahead breakfast casserole—flaky buttery croissants, tender ham, melty cheese, and a savory egg custard all baked in one dish. Ready to assemble in 10 minutes the night before, it’s perfect for Christmas morning, holiday brunch, Easter, Mother’s Day, or any special breakfast or brunch, so you can enjoy zero stress.

Prep Time10

Cook Time45

Total Time55

Course: Breakfast

Cuisine: American

Servings: servings

Author: Robyn Stone

Ingredients

2 cups chopped cooked ham
1 cup shredded Parmesan cheese
5 green onions (optional) sliced
6 large croissants cubed
1 cup milk
2 cups heavy cream
5 large eggs
2 cups grated Cheddar cheese

Instructions

Prep. Spray 9 x 13 baking dish with nonstick cooking spray or lightly coat with butter.
Make and chill. Combine ham, cheese, onions (if using), and croissants in a medium mixing bowl. Arrange in prepared baking dish. Whisk together milk, cream, and eggs and pour over the croissant mixture. Cover and chill overnight.
Bake and serve. Preheat oven to 350º F. Uncover the casserole and sprinkle with the Cheddar cheese. Bake until golden brown and cooked throughout, about 45 minutes. Remove from the oven and let stand for 5 minutes before serving.

Notes

Storage Tips

Store: Refrigerate leftovers in an airtight container up to 4 days.
Reheat: Bake at 325°F covered 15–25 minutes or microwave individual portions.
Make Ahead: Assemble up to 24 hours ahead; bake as directed when ready.

Note: I do not recommend freezing this breakfast casserole. Cream- and dairy-based recipes often do not freeze well; the cream's texture can "break" during freezing.

Nutrition