Lightly coat a baking sheet with spray oil. Working with one circle at a time, brush egg wash around the outer edge. Place a rounded tablespoon of the filling mixture in the center of the pastry circle. Fold the pastry into a half-moon shape and press the edges together with your fingers. Press the edges with a fork to seal completely. Place the finished empanadas on the oiled baking sheet. Continue making empanadas with the remaining dough and filling. At this point the empanadas can be covered with plastic wrap and refrigerated for several hours.
Just before baking brush each empanada with egg wash. Bake for 10 to 12 minutes or until nicely browned. If the empanadas are somewhat lacking in color, turn on the broiler and broil until colored. Watch carefully, this won't take long.