This is a great make-ahead recipe. Assemble turnovers as directed; place on baking sheet and brush with egg as directed. Freeze until solid, then transfer to freezer-weight resealable plastic bag or freezer container. Freeze up to 3 months. When ready to serve, place desired number of turnovers on baking sheet. Let stand at room temperature 1 hour, then bake as directed.
How to Cook and Mash the Potatoes
Cook (3/4 lb.) cut-up potatoes in boiling water 15 min. or until tender. Drain, then mash with potato masher or fork until smooth.
Use a food processor to prepare the dough instead of the mixer.