Spray a regular-sized muffin tin with cooking spray or use
silicone baking cups. Divide mixture between 8-9 of the muffin cups, pressing down lightly so that the surface is fairly flat. Bake for 15 minutes. Remove from oven and brush with remaining tomato sauce. Bake for another 10-15 minutes or until slightly firm to the touch. Cool for 5 minutes before serving.