The Italian dressing should be the prepared kind. The Mozzarella and Cheddar are about 4 ounces each.
Let the dough rise until doubled in a warm place. Cook in a skillet over medium heat, venison, onion, green pepper and mushrooms in the oil. Drain and add the seasoning.
Punch dough down on floured surface and roll into 16x8-inch rectangle. Cut in half lengthwise. Brush with the Italian dressing. Leave 1 inch edge. Place venison mix, cheeses and pepperoni. Fold and seal well. Place on baking sheet. Brush with rest of Dressing and sprinkle with Parmesan.
Bake at 350°F for 30-35 minutes. It should be golden brown when done. Serve with heated sauce if using. Makes 4.