Preheat oven to 375.
Unroll package and divide into 4 equal parts. Using a rolling pin and flour as needed, roll each square into 6x6 inch squares.
Place 1/2 cup pernil in each square, top with a large tomato slice and sprinkle with 1/4 cup feta. Repeat with all squares.
One hand pie at a time, lift each point of the square to the center so very little of the filling shows. Repeat with remaining squares.
Place squares on a lined baking sheet. Brush each square with egg, then transfer to oven. Bake hand pies for 15 minutes, or until golden on edges and fragrant. Enjoy hot!