Use the largest pieces of phyllo for the top, creating the equivalent of at least three layers. If only one large piece remains, place smaller pieces first, and use the largest piece(s) as the top layer.
Brush top lightly with butter.
Score the top (do not cut through to the bottom) into pieces and bake at 350F (175C) on the rack just below the middle of the oven for 30 minutes or until golden brown.