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A plate with a serving of ham and swiss croissant breakfast casserole and orange slices sits next to a baking dish holding the remaining casserole, with a red and white napkin nearby.
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Ham and Swiss Croissant Breakfast Casserole

A no prep breakfast that tastes like a warm ham and Swiss croissant just layer pour bake and feed a crowd with almost no effort.
Prep Time20 minutes
Cook Time45 minutes
Total Time1 hour 5 minutes
Course: Breakfast
Cuisine: American
Servings: 8 Servings
Calories: 605kcal
Author: Laura

Ingredients

  • 8 regular croissants or 6 large Costco style croissants
  • 1 1/2 cups sliced ham or leftover ham chopped
  • 2 cups Swiss cheese or cheese of choice shredded
  • 8 eggs
  • 2 cups milk
  • 1 cup heavy whipping cream
  • 2 tbsp grainy mustard or Dijon mustard
  • 1 tsp salt
  • 1/2 tsp pepper

Instructions

  • Preheat the oven to 350°F
  • Lightly butter a 9x13 inch baking dish
  • Sprinkle half of the ham and half of the cheese over the bottom of the dish
    Shredded cheese and chopped ham pieces scattered in a white baking dish, ready to become a delicious ham and swiss croissant breakfast casserole.
  • Tear the croissants into 3 to 4 pieces and layer them over the ham and cheese
    Several ham and swiss croissant pieces are torn and arranged closely together on a rectangular white tray, ready for a delicious breakfast casserole.
  • Add the remaining ham over the croissants
  • Crack the eggs into a bowl
  • Add the milk cream mustard salt and pepper
    A metal whisk in a bowl of pale, frothy batter, preparing the base for a delicious ham and swiss croissant breakfast casserole.
  • Whisk until well combined
  • Pour the egg mixture evenly over the croissant layer
  • Sprinkle the remaining Swiss cheese over the top
    Chopped croissants topped with ham and Swiss, shredded cheese, and pieces of ham in a baking dish create a delicious ham and swiss croissant breakfast casserole.
  • Bake uncovered for 40 to 45 minutes until set
  • Let the casserole rest for 5 minutes before serving
    A ham and swiss croissant breakfast casserole sits baked with cheese in a rectangular dish, accompanied by two plates of orange slices on a white surface.

Video

Notes

  • Egg casseroles set up best when rested for a few minutes before serving
  • This recipe works well with Gruyere cheddar or provolone if you want to switch up the cheese

Nutrition

Serving: 1 Serving | Calories: 605kcal | Carbohydrates: 31g | Protein: 26g | Fat: 42g | Saturated Fat: 23g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 12g | Trans Fat: 0.02g | Cholesterol: 284mg | Sodium: 1006mg | Potassium: 349mg | Fiber: 2g | Sugar: 10g | Vitamin A: 1425IU | Vitamin C: 0.3mg | Calcium: 386mg | Iron: 2mg