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Overnight Croissant Breakfast Casserole – Easy & Delicious


  • Author: amelia
  • Total Time: 9 minute
  • Yield: 6 servings 1x

Description

This overnight croissant breakfast casserole is the perfect make-ahead dish for a stress-free morning. Buttery croissants soak up a rich, savory egg mixture, creating a fluffy, golden-brown casserole that’s bursting with flavor. Ideal for brunch, holidays, or weekend breakfasts!


Ingredients

Scale
  • 4 large croissants, torn into pieces

  • 6 large eggs

  • 1 ½ cups milk

  • ½ cup heavy cream

  • 1 cup shredded cheddar cheese

  • ½ cup cooked bacon or sausage, crumbled

  • ½ teaspoon salt

  • ¼ teaspoon black pepper

  • ½ teaspoon garlic powder

  • ½ teaspoon Dijon mustard (optional, for extra depth)

  • ¼ teaspoon paprika (optional, for color and flavor)

  • 2 tablespoons chopped fresh parsley (for garnish)


Instructions

  • Prepare the Casserole:

    • Grease a 9×13-inch baking dish.

    • Spread the torn croissant pieces evenly in the dish.

    • Sprinkle cooked bacon or sausage and shredded cheese over the croissants.

  • Make the Egg Mixture:

    • In a large bowl, whisk together eggs, milk, heavy cream, salt, pepper, garlic powder, Dijon mustard, and paprika.

    • Pour the egg mixture evenly over the croissants, ensuring all pieces are soaked.

  • Chill Overnight:

    • Cover the dish with plastic wrap and refrigerate for at least 4 hours or overnight to let the flavors meld.

  • Bake the Casserole:

    • Preheat oven to 375°F (190°C).

    • Remove the casserole from the fridge and let it sit at room temperature for 10-15 minutes.

    • Bake uncovered for 35-40 minutes, or until golden brown and set in the center.

  • Serve & Enjoy:

    • Let the casserole cool for a few minutes before garnishing with fresh parsley.

    • Serve warm and enjoy!

Notes

  • You can add veggies like spinach, bell peppers, or mushrooms for extra flavor.

  • Swap cheddar for Swiss, Gruyère, or mozzarella for a different taste.

  • Leftovers can be stored in the fridge for up to 3 days and reheated in the oven.

  • Prep Time: 15 minutes
  • Cook Time: 35-40 minutes

Nutrition

  • Calories: 380 kcal
  • Fat: 26g
  • Carbohydrates: 22g
  • Fiber: 1g
  • Protein: 18g