Crescent Pepperoni Roll-Ups. 1 can refrigerated crescent rolls, 40 slices pepperoni, 4 sticks of mozzarella string cheese, cut in half, garlic powder, pizza sauce. Preheat oven to 375. Unroll crescent rolls and separate into 8 triangles. Place 5 slices of pepperoni on each crescent roll.Top pepperoni with string cheese half and roll up. Sprinkle crescent rolls with garlic powder. Place rolls on baking sheet and bake for 12-15 minutes, or until golden brown. Serve with a side of warm pizza sauce.