Croissant Breakfast Casserole Recipe

golden croissant breakfast casserole with ham cheese and eggs

Croissant Breakfast Casserole Recipe

This croissant breakfast casserole is the ultimate make-ahead brunch dish. Buttery croissants soak up a rich egg custard overnight, then bake into a golden, cheesy breakfast everyone will love. Perfect for holidays or weekend mornings!

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Course: Breakfast, Brunch

Cuisine: American

Prep Time: 15

Cook Time: 50

Chill Time: 4

Total Time: 5 5

Servings:

Calories: 420kcal

Cost: $12–15

Equipment

9x13 inch baking dish
Large mixing bowl
Sharp knife
Measuring cups/spoons
Plastic wrap or foil

Ingredients

Main Casserole Base

6 large croissants day-old preferred
8 large eggs room temperature
2 cups whole milk
½ cup heavy cream
1 teaspoon vanilla extract
½ teaspoon salt
¼ teaspoon black pepper

Protein & Cheese Layer

1 ½ cups ham diced (or cooked sausage)
2 cups cheddar cheese shredded
½ cup Swiss cheese shredded
¼ cup Parmesan cheese grated

Optional Add-ins

½ cup bell peppers diced
¼ cup green onions chopped
2 tablespoon fresh herbs chives, parsley
1 tablespoon Dijon mustard

Instructions

Grease a 9x13-inch baking dish. Cut croissants into chunks.
Layer half of the croissants, ham, and cheeses in the baking dish. Top with remaining croissants.
In a large bowl, whisk together eggs, milk, cream, vanilla, salt, and pepper. Pour evenly over the croissants.
Gently press croissants down to help them soak up the custard. Sprinkle remaining ham and cheese over top.
Cover tightly with plastic wrap or foil and refrigerate overnight (at least 4 hours).
Preheat oven to 350°F. Uncover and bake for 45–55 minutes, until golden and set.
Let rest for 10 minutes before slicing and serving.

Notes

Nutrition information is automatically calculated, so should only be used as an approximation.

Nutrition