Unroll dough, press perforations to seal. Cut in to 2 1/2 inch squares. Top each square with rounded measuring teaspoon of feta cheese mixture. Fold dough over filling, forming triangle; press edges to seal.
Place triangles 2 inches apart on a non-greased cookie sheet. Brush tops with remaining beaten egg. Sprinkle lightly with Parmesan cheese. Bake 9 to 11 minutes or until golden brown. Serve warm.
By Deeli from Richland, WA