Easy Pan O’ S’mores

Easy Pan O’ S’mores 9 Honey Grahams, broken crosswise in half (18 squares), divided 36 Marshmallows, cut crosswise in half, divided 4 HERSHEY’S Milk Chocolate Bars, (1.55 oz. each), chopped HEAT oven to 350°F. PLACE 9 graham squares in single layer on bottom of 8-inch square pan; top with 36 marshmallow halves. Sprinkle with chopped chocolate. Cover with remaining graham squares. TOP with remaining marshmallow halves, cut sides down. BAKE 9 to 11 min. or until marshmallows are puffed and golden brown. Let stand 5 min. before serving.