If you buy a large tin of large white beans, drain them, then add a tin of chopped tomatoes, basil, a squirt of tomato paste, chopped cooked smoked sausage and some stock if you have it, or a cube, you will end up with a version of "cassoulet". Just simmer the lot for 40 minutes then let it cool down as this dish is 100% better if it is re-heated the next day.