Jamie Oliver served up tasty harissa butter beans with parsley and lemon on Jamie: Fast and Simple.
The ingredients are: 2 cloves of garlic, 4 sprigs of flat-leaf parsley, olive oil, 1 x 400g tin of butter beans, 1 tablespoon of harissa paste and ½ a lemon.
See recipes by Jamie in his book titled: Simply Jamie available from Amazon now.