Croissant Mini Quiche

Preheat oven to 375 degrees F (190 degrees C). Spray a 12-cup muffin tin with cooking spray.

Flatten croissants out using a rolling pin on a work surface; cut into 4-inch squares. Press croissant squares in the prepared muffin cups.

Beat eggs milk onion powder nutmeg salt and black pepper together in a bowl. Stir in three-cheese blend and spinach. Spoon egg mixture into croissant squares until about 2/3 full.

Bake in the preheated oven until browned and egg is set in the middle about 20 minutes.