On lightly floured work surface, roll 1 puff pastry sheet into 10-inch square. Cut into 4 squares. Repeat with remaining puff pastry sheet. Working with 1 pastry square at a time, lightly brush edges with water. Spoon about 1/4 cup filling on 1 diagonal side of square. Fold into triangle; press edges to seal. Repeat with remaining pastry and filling. Place turnovers on cookie sheet. Lightly brush tops with egg. Bake 20 minutes or until puffed and golden brown.