Heat oven to 400° F.
In large bowl, combine sausage, syrup, beaten eggs, green onions, diced apples and stuffing mix.
Dust surface with flour; roll out pastry sheet to 12-by-18-inch rectangle. Transfer pastry to large baking sheet with parchment paper. Spoon half of sausage mixture down center of pastry.
Make 3-inch cuts down sides of pastry. Fold one strip at a time, alternating sides. Fold both ends to seal in filling. In bowl, beat egg whites and water; brush over pastry.
Repeat steps for second pastry sheet.
Bake 25-30 minutes, or until brown, rotating pans after baking 15 minutes.