1. Preheat oven to 350°.
2. Unroll dough onto a work surface; lightly coat dough with cooking spray.
3. Spoon pesto onto dough, spreading to edges. Place pepperoni slices evenly over dough, and sprinkle with cheese. Starting at a long edge, roll up dough, jelly-roll fashion; pinch seam to seal (do not seal ends of roll). Using a serrated knife, cut roll evenly into 16 slices. Place slices, cut sides down, on a baking sheet coated with cooking spray.
4. Bake at 350° for 20 minutes or until golden brown.