Corned beef pie

Corned beef pie is made from corned beef, onion and often thinly sliced, cubed or mashed potato. It can be eaten hot or cold, making it a suitable common picnic food and also a "winter warmer". The pie may be made with a mashed potato topping, as in Shepherd's pie, or with a traditional pastry crust. The recipe originated during World War I, when it was known as Trench Pie or Potato Pie.

Description: Wikipedia — Corned beef pie, CC BY-SA 4.0