Preheat oven to 400.
Roll out pizza dough on a flowered cutting board. Cut the dough into quarters and shape each quarter into a square.
Put five pepperoni slices on one half corner of each square pizza dough.
Mix together the cheese and marinara sauce. Place a spoonful on top of the pepperoni. Repeat on each of the dough squares.
Fold each rectangle in half, corner to corner; seal edges with fork. Put on baking sheet sprayed with cooking spray.
Bake for 20-22 minutes or until golden brown.