Preheat the oven to 400°F (204°C). Coat a 9-inch round pie pan with cooking spray.
Roll the pizza dough into a large rectangle and cut it into 12 equal rectangles. Add about 2 tsp mozzarella to each piece and divide the quartered pepperoni evenly among them.
Bring the edges of each dough piece around the filling and pinch firmly to form a sealed ball. Arrange the rolls seam-side down in the prepared pan.
Melt the butter in a small saucepan. Cook the garlic over medium-low heat for 1–2 minutes. Remove from the heat and stir in the basil, oregano, parsley, and salt. Brush half over the rolls.
Bake for 20 minutes, until the tops are golden and the exposed dough looks baked. Brush with the reserved garlic butter, sprinkle with Parmesan-Romano, and serve warm with pizza sauce or marinara.