Preheat: 350* MELT the butter IN your 13 x 9" baking pan. REMOVE from oven when melted. SPRINKLE graham cracker crumbs into the butter, press down & spread to edge of cake pan. POUR condensed milk evenly over the crumbs. SPRINKLE the coconut, chocolate chips & nuts over the condensed milk & gently press down. BAKE: 25 to 30 mins; until light golden brown. COOL completely in the pan. CUT into bars when cooled. Makes 2 to 3 doz bars.