Heat the oil in a non-stick pot and sauté the leek, mushrooms, onion and garlic until they wilt (5 minutes).
Add the sausage cut into large pieces and continue to sauté for a while more, turning the pieces until they colour and have been cooked through.
Pour in the wine. Add the peppers and then the tomato juice, tomatoes, celery, salt and pepper and the hot water.
Boil for 10 minutes.
Add the beans and boil for a further 10 minutes. Serve hot.