Description

This Overnight Croissant Breakfast Casserole combines buttery croissants, creamy eggs, and gooey cheese into a crowd-pleasing dish that’s perfect for holiday brunches or special mornings.

Ingredients

Scale

6–8 large croissants, preferably day-old
8 large eggs
1 cup whole milk
1 cup heavy cream
1 teaspoon salt
1/2 teaspoon black pepper
Pinch of nutmeg
1 cup shredded sharp cheddar cheese
1 cup shredded Gruyère cheese
Optional: sautéed vegetables (spinach, mushrooms, bell peppers)
Optional: cooked meats (ham, bacon, sausage)

Instructions

Grease a 9×13-inch baking dish with butter or cooking spray.
Cut the croissants into bite-sized pieces and layer them evenly in the dish.
In a large mixing bowl, whisk together eggs, milk, heavy cream, salt, black pepper, and nutmeg.
Stir in shredded cheddar cheese and Gruyère cheese.
If adding vegetables or meat, sauté them first and layer them over the croissants.
Pour the egg mixture evenly over the croissants and toppings, ensuring all pieces are soaked.
Cover the dish with foil and refrigerate overnight (at least 6 hours).
Preheat the oven to 350°F (175°C). Bake the casserole covered for 30 minutes.
Remove the foil and bake for an additional 15-20 minutes, or until golden and set.
Let the casserole cool for 5 minutes before serving. Garnish with fresh parsley or chives, if desired.

Notes

For best results, use day-old croissants to absorb the custard mixture fully. Customize with your favorite vegetables, meats, or cheeses. Ensure vegetables are sautéed to avoid excess moisture.

Prep Time: 15 minutes
Cook Time: 50 minutes
Category: Breakfast
Cuisine: American

Nutrition

Serving Size: 1 slice
Calories: 350400
Sugar: 4
Sodium: 600
Fat: 25
Saturated Fat: 12
Carbohydrates: 20
Fiber: 1
Protein: 15

Keywords: croissant casserole, breakfast casserole, holiday brunch, overnight casserole, easy breakfast recipe