Press or roll each rectangle of dough to form a 7x5 -inch rectangle on a cookie sheet. Arrange pepperoni slices in center third of each rectangle. Layer 1 tablespoon spaghetti sauce and 1 slice cheese over pepperoni. Fold short sides of dough to almost meet in center, securely pinch edges together, leaving middle open. Tuck 4-5 pepperoini slices into middle opening. Bake at 190ºC or 13-16 minutes or until golden brown.