HEAT oven to 400ºF.
UNFOLD pastry on lightly floured surface; roll into 10-inch square. Cut into 9 circles with 3-inch cookie cutter. Place, 2 inches apart, on baking sheet. Bake 10 min. Remove to wire racks; cool completely.
MEANWHILE, beat pudding mix and milk in medium bowl with whisk 2 min. Stir in COOL WHIP. Refrigerate 15 min.
MELT chocolate as directed on package. Split pastry rounds; fill with pudding mixture. Drizzle with chocolate.