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Ham and Cheese Croissant Breakfast Casserole

Irresistible Ham and Cheese Croissant Breakfast Casserole

A delicious Ham and Cheese Croissant Breakfast Casserole that combines buttery croissants, smoky ham, and gooey cheese, perfect for brunch or holiday gatherings.
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Prep Time 30 minutes
Cook Time 35 minutes
Chilling Time 30 minutes
Total Time 1 hour 35 minutes
Servings: 8 slices
Course: Breakfast
Cuisine: French
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 6 croissants croissants Choose fresh, medium-sized croissants
  • 6 large eggs Fresh eggs help bind the casserole
  • 2 cups half and half or whole milk Adds creaminess; substitute with whole milk for lighter flavor
  • 2 tablespoons Dijon mustard Offers a flavorful twist; optional for milder flavor
  • 1 teaspoon salt Enhance flavors as needed
  • 2 cups ham Diced smoky deli or leftover ham
  • 1 cup Swiss or Gruyere cheese Shredded fresh cheese for melting
For Garnishing
  • 1 tablespoon powdered sugar For dusting; optional maple syrup for drizzling

Equipment

  • 9x6 or 9x11 deep baking dish
  • mixing bowl
  • whisk

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 350°F (175°C). Lightly coat a baking dish with cooking spray.
  2. Tear the croissants in half and layer them cut-side up in the baking dish. Scatter the diced ham over the croissant layers.
  3. Sprinkle the shredded Swiss or Gruyere cheese evenly over the croissants and ham.
  4. In a mixing bowl, whisk together the eggs, half and half (or whole milk), Dijon mustard, and salt until smooth. Pour over the layers.
  5. Cover the dish tightly with aluminum foil and chill in the refrigerator for at least 30 minutes or overnight.
  6. Remove the foil and bake for 20 minutes covered. Then uncover and bake for another 10-15 minutes until golden brown.
  7. Let the casserole rest for about 5 minutes before serving. Dust with powdered sugar or drizzle with maple syrup.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 30gProtein: 15gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 8gCholesterol: 150mgSodium: 800mgPotassium: 250mgFiber: 1gSugar: 2gVitamin A: 15IUCalcium: 20mgIron: 8mg

Notes

This casserole can be made ahead of time and is perfect for gatherings and brunch events.

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