Preheat oven according to biscuit dough package.
Using a rolling pin, roll dough out to even edges. Cut dough into 12 even squares. Stuff each square with pepperonis and mozzarella stick. Roll dough over toppings and fold ends under. Place on a greased cookie sheet. Melt 3 tablespoons of butter along with garlic powder in microwave; brush on each pizza stick. Optional, sprinkle tops of pizza sticks with parmesan cheese. Bake according to biscuit dough package or until golden brown. Allow a few minutes for cooling. Serve with pizza sauce for dipping.