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5.0 from 54 votes

Ham and Swiss Croissant Casserole

This Ham and Swiss Croissant Casserole is a savory breakfast casserole that can be prepped the night before made with eggs, croissants, ham, and Swiss cheese.

Prep Time
15 mins
Cook Time
1 hr
Servings: 12 servings
Course: Main Course , Breakfast
Cuisine: American

Ingredients

  • 6 cups cubed croissants, about 10 ounces (around 10 small croissants or 5 large croissants)
  • 8 ounces diced ham
  • 2 cups shredded swiss (8 ounces)
EGG MIXTURE:
  • 10 large eggs
  • 1 ½ cups half and half (more for a bread pudding texture)
  • 1/4 /4 cup sliced green onions
  • 2 teaspoons Dijon mustard
  • 1 teaspoon salt
  • 1/2 /2 teaspoon pepper

Instructions

    Cup of Yum
  1. Grease a 9x13 baking dish. Layer half the croissants, half the ham, and half the cheese. Repeat layers.
  2. In a large bowl, whisk together the eggs, half and half, green onions, mustard, salt, and pepper.
  3. Pour mixture over the croissant mixture making sure it is all covered. Cover with foil and refrigerate for at least 8 hours or overnight.
  4. When ready to bake, remove casserole from fridge and let sit at room temperature while the oven preheats. Preheat oven to 350 degrees. Bake covered for 30 minutes. Remove foil and bake another 25-35 minutes or until top is browned and the center is set. Eat warm. Garnish with more green onions if desired.