1. Preheat oven to 425 degrees. In a greased 15x10x1-inch baking pan, pat dough into 13x8-in. Rectangle. Sprinkle cheese to within 1/2 in. of edges.
2. On half of the dough, layer the ham, salami, onion, green pepper and tomato to within 1 in. of edges. Sprinkle with mozzarella. Fold dough over filling; pinch edges to seal. Cut slits in top.
3. Bake 20 minutes until golden brown. Let stand 10 minutes. Cut into 4 pieces. Makes 4 servings.