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Croissant Breakfast Casserole

Decadent Croissant Breakfast Casserole for Brunch Bliss

This Croissant Breakfast Casserole is the ultimate crowd-pleaser, perfect for brunch gatherings, featuring flaky croissants, crispy bacon, and rich custard.
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Prep Time 20 minutes
Cook Time 45 minutes
Cooling Time 10 minutes
Total Time 1 hour 15 minutes
Servings: 8 portions
Course: Breakfast
Cuisine: French
Calories: 450
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 6 pieces Croissants Day-old croissants enhance texture
  • 8 oz Bacon Can substitute with turkey bacon
  • 1 cup Gruyère Cheese Swiss cheese works as a substitute
  • 1 cup White Cheddar Cheese Can be replaced with regular Cheddar
  • 6 large Eggs Essential for custard base
  • 2 cups Whole Milk Half and half can be used for richer flavor
  • 1 cup Heavy Cream Using more milk may change texture
  • 1 tbsp Sage Can swap with thyme or Italian seasoning
  • 1 tbsp Dijon Mustard This can be omitted if not available
  • 1 tsp Kosher Salt Adjust to taste
  • 1 tsp Black Pepper Adjust to taste
  • 2 tbsp Chives Can substitute with scallions

Equipment

  • 9x13 baking dish
  • skillet
  • mixing bowl

Method
 

Instructions
  1. Preheat the oven to 350°F (175°C) and generously grease a 9x13 baking dish.
    Croissant Breakfast Casserole
  2. Cook the bacon in a skillet over medium heat until crispy, about 4-5 minutes; transfer to the greased baking dish.
    Croissant Breakfast Casserole
  3. Mix the Gruyère and white Cheddar cheeses, then distribute half of this mixture over the bacon.
    Croissant Breakfast Casserole
  4. Arrange the ripped croissants on top without packing them too tightly.
    Croissant Breakfast Casserole
  5. Whisk together eggs, whole milk, heavy cream, sage, Dijon mustard, salt, and pepper; pour over the croissants.
    Croissant Breakfast Casserole
  6. Sprinkle the remaining cheese on top, then bake for 40-45 minutes or until golden brown and bubbly.
    Croissant Breakfast Casserole
  7. Cool for 5-10 minutes, garnish with chives, and serve.
    Croissant Breakfast Casserole

Nutrition

Serving: 1portionCalories: 450kcalCarbohydrates: 30gProtein: 20gFat: 30gSaturated Fat: 15gPolyunsaturated Fat: 2gMonounsaturated Fat: 10gCholesterol: 300mgSodium: 800mgPotassium: 400mgFiber: 2gSugar: 2gVitamin A: 20IUCalcium: 25mgIron: 10mg

Notes

For best texture, use stale croissants. Recommended to serve with fresh berries on the side.

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