Roll bread dough out onto lightly floured surface to 12-inch square. Brush pizza sauce over bread dough. Sprinkle SPAM®, cheese and peperoncini over dough. Roll dough, jelly-roll fashion; pinch seam to seal (do not seal ends). Cut roll into 16 slices. Place slices, cut side down, on greased baking sheet. Cover and let rise in warm place 45 minutes. Heat oven to 350°F. Bake 20 to 25 minutes or until golden brown. Serve immediately with additional pizza sauce.