My suggestion is to use more than one coupon on your doorhangers, but make one coupon for a large 1 topping pizza for $… It doesn’t have to be a great discount, but it will appeal to many more than a large 1 top+ bread+ soda+ salad. Get the initial sale, hope to upsell, but know you will WOW them with the product and service and gain them as a customer for life.