Savory Croissant Breakfast Casserole

Byadmin 2 min read

Savory Croissant Breakfast Casserole is a rich, comforting dish made with flaky croissants, fluffy eggs, melted cheeses, and hearty breakfast favorites like bacon, ham, and mushrooms. Perfect for brunch, family breakfasts, or make-ahead mornings, this casserole delivers bakery-style indulgence with minimal effort. The buttery croissants soak up the creamy egg mixture while layers of cheese and savory fillings create a warm, satisfying meal that is ideal for feeding a crowd.

  • Prep time15 minutes
  • Chill time2–3 hours
  • Servings4
  • DifficultyMedium

Savory Croissant Breakfast Casserole Recipe

Equipment

  • 9 x 13 inch casserole dish greased

Ingredients

  • 6 large croissants cut in half
  • 1 cup fresh mushrooms sliced
  • 1 bunch green onions chopped with ends removed
  • 8 large eggs beaten
  • 2 tablespoons milk or heavy cream
  • ½ teaspoon paprika
  • 2 tablespoons butter
  • ½ cup chopped ham or you can sub turkey/ham lunch meat
  • 4 strips bacon fried, cooled then and chopped
  • ½ cup sharp cheddar cheese
  • ¼ cup Parmesan cheese
  • 6 slices Swiss cheese
  • salt and pepper to taste

Instructions 

  • Preheat your oven to 350 degrees.
  • Slice your croissants in half.
  • Next, grease a casserole dish and place the croissants in it.
  • Toast the croissants at 350 degrees for about five minutes or until just slightly browned.
  • Cover the croissants with Swiss cheese (be careful the pan may be hot from toasting).
  • Heat the butter in a large skillet and combine the mushrooms and green onions. Saute on medium for about five minutes and then set aside to cool slightly.
  • Cover the croissants with the mixture. (Again, be careful the pan may still be hot from toasting your croissants).
  • Beat the eggs in with the milk and paprika.
  • Next, pour the egg and milk mixture over the casserole and then add the remaining cheese with the ham and bacon on top.
  • At this point, the casserole can be kept in the refrigerator overnight for a no fuss fix the next morning or you can go ahead and bake the casserole if you’re ready.
  • The casserole needs to covered with foil and cooked at 350 degrees for about 45 minutes then uncovered for 5 to 10 additional minutes or until the cheese is completely melted.

Health Benefits of Savory Croissant Breakfast Casserole

  • High-Quality Protein: Eggs, cheese, bacon, and ham provide protein that supports muscle health and helps keep you full longer.
  • Energy-Dense Breakfast Option: Croissants and eggs supply carbohydrates and fats that provide sustained energy, making this ideal for busy mornings.
  • Nutrients from Vegetables: Mushrooms and green onions add fiber, vitamins, and minerals that support digestion and overall wellness.
  • Calcium for Bone Health: Cheddar, Swiss, and Parmesan cheeses contribute calcium, which is essential for strong bones and teeth.
  • Make-Ahead Convenience: Preparing this casserole in advance helps reduce morning stress while ensuring a balanced, hearty breakfast.
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