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Overnight Croissant Breakfast Casserole

This hearty dish combines the buttery, flaky texture of croissants with a creamy, cheesy egg mixture, and savory bits of ham or bacon.
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 13 hours
Course Breakfast, Brunch
Cuisine American
Servings 8 servings
Calories 320 kcal

Ingredients
  

Main Ingredients

  • 6 pieces croissants, torn into pieces
  • 6 large eggs
  • 2 cups milk
  • 1 cup shredded cheese (like Gruyère or cheddar)
  • 1 cup cooked ham or bacon, diced
  • 1/4 cup chopped fresh parsley
  • Salt and pepper to taste
  • Optional: diced vegetables (like bell peppers or spinach)

Instructions
 

Preparation

  • Preheat the oven to 350°F (175°C).
  • In a large bowl, whisk together the eggs, milk, salt, and pepper until well combined.
  • Grease a 9×13 inch baking dish and layer the torn croissants evenly in the dish.
  • Sprinkle the cooked ham or bacon, cheese, and any optional vegetables over the croissants.
  • Pour the egg mixture over the croissant layers, ensuring everything is well-coated.
  • Cover the dish with plastic wrap and refrigerate overnight.

Baking

  • In the morning, remove from the refrigerator and let it sit for 30 minutes at room temperature.
  • Bake in the preheated oven for 35-40 minutes or until the casserole is set and golden brown.
  • Garnish with fresh parsley and serve warm.

Notes

For an extra touch, consider adding spices like garlic powder or onion powder to your egg mixture. Allow the casserole to cool before storing to prolong freshness.
Keyword Breakfast Casserole, Croissants, Eggs, Overnight, Savory