* Hard boiled egg should be peeled and chopped. ~- ~- Cook and stir ground beef in 10-inch skillet, breaking up into small pieces, until brown; drain reserving 1 T of fat and the beef in the skillet. Stir in onion, raisins, olives, salt and pepper. Cover and cook over low heat for 5 minutes. Stir in cottage cheese and hard cooked egg. Heat oven to 400 degrees F. Mix egg white and water until slightly foamy; reserve. Prepare pastry dough; gather into a ball. Divide into halves. Shape into 2 flattened rounds on lightly floured cloth covered surface. Roll 1 round of pasty into circle, about 14 inches in diameter. Cut into 11 or 12 circles, 3 1/2-inches in diameter. Spoon on 2 t of the beef mixture at the center of each circle; brush edge of pastry with egg white mixture. Fold pastry circle up over filling; press edge with fork to seal. Place empanaditas on ungreased cookie sheet. Repeat with remaining pastry circles. Gather any remianing pastry; shape into another round. Repeat rolling cutting and filling. Beat egg yolk and milk until well blended; brush over tops of empanaditas. Bake until golden brown, 15 to 20 minutes. Serve warm.