On lightly floured surface, roll out puff pastry with rolling pin into 13x9-inch rectangle. Place pastry over vegetables, folding edges under to fit if necessary. Pierce pastry all over with fork. Bake 20 to 25 minutes longer or until pastry is golden brown. Remove from oven; cool 10 minutes. Place heatproof serving platter upside down over baking dish. Carefully turn platter and dish over; remove dish. If necessary, replace any vegetables or glaze that stick to dish. Cut into squares.