Melt butter in 13x9-inch baking pan in preheated 350F oven; remove from oven. Sprinkle graham crumbs in butter; mix well. Press into bottom of pan. Sprinkle with chocolate-covered raisins, coconut and nuts; press down firmly. Pour sweetened condensed milk over top.
Bake for 25-30 minutes or ntil light golden brown. Cool completely in pan on wire rack.