To a little water in a mess tin add the contents of the sachet of Drink, Beef. Heat then add the chopped contents of a tin of Bacon Burger plus one other tin (Irish Stew, Babies Heads - it matters not) and a tin of beans. Smash the contents of a pack of Biscuits, AB (brown or white) whilst still in the pack and then add the crumbs to the mess tin. Heat the contents through and serve.
Rock Stew. Probably named because a rock invented it but more probably because of its effect on your daily constitution.