Preheat oven to 400. Prepare a 9" pie plate with cooking spray; set aside. Sprinkle parmesan cheese in pie plate. In a mixing bowl, combine chicken, half cup mozzarella cheese, oregano, basil, garlic powder,and tomato paste. Spoon mixture over parmesan cheese in pan. In a smaller bowl, combine baking mix, milk, black pepper, and eggs. Mix until blended. Pour over chicken mixture. Bake for 35 minutes. Sprinkle with remaining mozzarella cheese. Bake five minutes more, or until knife inserted in center comes out clean. Cool five minutes before serving.