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–+ servings
Croissant Breakfast Casserole

Irresistible Croissant Breakfast Casserole for Cozy Mornings

A delightful Croissant Breakfast Casserole featuring buttery croissants, savory ham, and gooey cheese, perfect for brunch gatherings.
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Prep Time 30 minutes
Cook Time 30 minutes
Chilling Time 30 minutes
Total Time 1 hour 30 minutes
Servings: 6 slices
Course: Breakfast
Cuisine: French
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 6-8 medium-sized croissants fresh or slightly stale offers great texture
  • 4 large eggs binding agent; contributes to a fluffy interior
  • 1 cup half and half or whole milk can substitute with dairy-free milk for a lighter option
  • 1.5 tablespoons Dijon mustard optional for an extra tangy kick
  • 1 pinch salt adjust according to your preference
For the Filling
  • 8 ounces deli or leftover ham about 6 thin slices; swap for turkey or veggie bacon if desired
  • 6 ounces shredded Swiss or Gruyere cheese can substitute with cheddar for a different flavor
For the Garnish
  • Powdered sugar optional but adds sweetness and visual appeal

Equipment

  • Baking dish
  • whisk

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 350°F (175°C). Gather your ingredients while the oven heats up.
  2. Lightly coat a 9×6 or 9×11 baking dish with cooking spray.
  3. Tear your croissants in half and layer them cut-side up in the baking dish.
  4. Cut your ham into thirds and distribute it evenly over the croissant layers. Sprinkle the shredded cheese on top.
  5. In a bowl, whisk together the eggs, half and half (or milk), Dijon mustard, and a pinch of salt. Pour this mixture evenly over the layers.
  6. Cover the dish with foil and refrigerate for at least 30 minutes, or overnight.
  7. Bake the covered dish in the preheated oven for 20 minutes. Then, remove the foil and bake for an additional 10-15 minutes.
  8. Let the casserole cool for about 5 minutes and dust with powdered sugar before serving.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 30gProtein: 15gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 150mgSodium: 600mgPotassium: 300mgFiber: 2gSugar: 3gVitamin A: 400IUCalcium: 200mgIron: 1.5mg

Notes

This Croissant Breakfast Casserole is perfect for brunch gatherings and can be made ahead of time for convenience.

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