Lay all tortillas on counter. Sprinkle each very generously with cheese on each tortilla. Drizzle with a few ounces of sauce. Spread pepperoni and sausage over cheese and cover with remaining cheese. Fold over each tortilla to form a half-moon quesadilla. In a heated, large nonstick pan, brown both sides of quesadillas. Bake pizzadillas in a 350 degree F oven for 5 minutes. Cut each pizzadilla into quarters and serve with remaining pizza sauce for dipping.