Preheat oven to 450°F. Generously coat a rimmed baking sheet with cooking spray.

Roll out dough to a 10-inch square on a floured surface. Spread pasta sauce over dough. Reserve 2 tbsp mozzarella; sprinkle with remaining mozzarella over sauce. Top with pepperoni. Roll dough jelly roll style to enclose filling.

Cut roll crosswise into 10 slices, cut side down, on prepared baking sheet; brush tops with oil. Sprinkle with Parmesan and reserved mozzarella.

Bake until golden brown, about 15 minutes. Transfer to a serving platter and serve immediately.