Preheat oven to 400~f. Melt butter in medium sauce pan on med heat. add zucchini & onion; cook & stir 2 minutes or till tender. Remove from heat. Stir in stuffing mix & cheese until well blended.
Carefully insert fingers between the meat & skin of each chicken quarter to form a pocket. Fill pockets evenly with stuffing mixture. Place skin sides up, in a large roasting pan.
Bake 45 minutes--1 hour or till chicken is heated through.
Makes 8 servings