Preheat oven to 400°F. Line a baking sheet with parchment paper. Flatten each dough ball to desired thickness. Place 2 slices of pepperoni in middle of each dough round. Tear each slice mozzarella into 4 pieces and arrange evenly over the pepperoni. Roll up dough and pinch seams well to seal. Arrange rolls, seam side down, 1 to 1 1/2 inches apart on the baking sheet. Brush 2 tablespoons of the butter evenly over the rolls. Bake until golden brown, about 10 to 12 minutes. Stir together garlic powder, oregano, salt, and the remaining 2 tablespoons butter in a small bowl. Immediately brush the butter mixture evenly over the warm rolls and Enjoy!