Another easy recipe, traditionally called monday pie because
you used the left over roast beef from the Sunday as the
meat ingredient. Ive only ever used plain mince...

1 large onion
4 large potatoes
4 chopped tomatoes (or buy a tin of pre-chopped)
2 oxo cubes (beef flavour enhancers, in case you dont know of them)

Grated cheese, if want, for topping.

Finely chop onion, fry gently until starts to soften.
Add beef, fry until browned.
Add oxo cubes, chopped tomatoes, tin of beans.
Pour into large ovenproof dish.
Thinly slice potatoes and lay on top of pie filling.
Cook in a medium-hot oven for approx 45 mins (by this time the potatoes
should have softened and started to brown)
Sprinkle grated cheese on top, put back in oven until cheese browns and goes
crispy.
Serve and eat - goes very well with peas.