1 tin of corned beef Potatoes 1 can Sainsbury's Five Beans
Method: Boil up spuds and mash them with a knob of butter and a splash of milk. Open a tin of corned beef, taking care not to slice a finger off on the resulting razor sharp edge, no one likes blood in their corned beef. Slice the corned beef into, erm, slices. Open a can of Sainsbury's Five Beans (Heinz will do but they cost stupid money). Microwave the beans in a non-metallic bowl (so not the can) for about 2 1/2 minutes.
NB: Image is not mine and is NOT a Corned Beef and Mash Speciale as it uses that thin sliced sandwich corned beef and bog standard baked beans. Probably from Aldi.