fry mince (even quorn tastes good) and sliced onion, add gravy (made from granules) and cooked peas, carrots, swede (Anything you like) simmer for 20 mins. Peel and boil potatoes, strain add butter/marg, and cream and mustard to taste.
Put mince mixture in bottle of a dish cover with potato mix and cook in oven gas mark 4 for about half an hour.