On a lightly floured surface, roll out each pastry sheet to 1/8-in. thickness. Using a 3-1/2-in. heart-shaped cookie cutter, cut out 12 hearts. Place on ungreased baking sheets. Bake at 400° for 8-11 minutes or until golden brown. Remove to wire racks to cool.
In a large bowl, whisk milk and pudding mix for 2 minutes (mixture will be thick).
In another large bowl, beat cream until it begins to thicken. Beat in confectioners' sugar until soft peaks form. Fold into pudding.
Split puff pastry hearts in half. Place bottom halves on serving plates. Spoon 1/4 cup filling over each; top with strawberries and pastry tops. Sprinkle with confectioners' sugar.