Process
Preheat the oven to 375°F. Take a bowl and add 1 cup mozzarella cheese, cream cheese, 3 tablespoons of Parmesan cheese, and spinach. Blend well and then spread on the chicken. Roll up chicken tightly by starting at the narrow end; to secure it, use wooden toothpicks and set aside. Take a shallow dish, beat an egg in it and add the crackers and the remaining Parmesan cheese. Dip the chicken pieces in egg and then in the crumb mixture. Place these pieces in a 31×9" baking dish sprayed with cooking spray. Let the seam-sides be down. Bake for about 30 minutes, discard the toothpicks, and serve with spaghetti sauce and mozzarella.