Gently separate dough perforations on top until filling peeks through. Brush top of dough with melted butter, and sprinkle with Parmesan cheese. Bake 20 to 25 minutes or until dough is golden brown and thoroughly baked. Cool 5 to 10 minutes before cutting into serving slices. Just before serving, in small microwavable bowl, microwave remaining 3/4 cup pizza sauce uncovered on Medium-High (70%) 1 to 2 minutes or until hot.