Step 1: Peel and chop the potatoes.
Step 2: bring to the boil and simmer for 15 mins
Step 3: fry the onion and the beef mince until brown
Step 4: add the canned tomatoes and simmer for 4 mins
Step 5: mash the potatoes adding a little grated cheese for flavour
Step 6: put the beef mince, tomatoes and onions in the bottom of a oven dish
Step 7: add the mash ontop and finish with a sprinkling of cheese
Step 8: bake for 10-15 mins or until slightly browned on top.