Homity pie is a traditional British open vegetable pie. The pastry case contains a filling of potatoes and an onion and leek mixture, which is then covered with cheese.There is little known on the exact history of the dish. Some call it 'Devon Pie', believing it to be an English country recipe originating from Devon. Its origins are also claimed to date back to the Land girls of the Second World War and the restrictions imposed by wartime rationing.