Allow Dough To Rise According To Package Directions. Punch Down; Divide Into 10 Equal Pieces. Roll Each Piece Into A 5-In. Circle. Place About 1/4 Cup Ham And 2 Tablespoons Cheese On Each Circle; Press Filling To Flatten. Mix Egg Yolk And Water; Brush On Edges Of Circles. Fold Into Semicircles And Pinch Edges To Seal. Brush Tops With Egg Yolk Mixture. Place On A Greased Baking Sheet. Bake At 375 Degrees F For 15-20 Minutes Or Until Golden Brown. Serve Warm Or Cold. If Desired, Cool And Freeze.