Mix together the yoghurt, tomato purée
and vinegar and season with salt and pepper.
Mix together the vegetables and beans
and toss in the dressing.
Cover and chill.
Sprinkle with the parsley to serve.
Alternative Suggestion :
Salads are a wonderful way of using small
amounts of ready cooked pulses. Others can be used instead chick peas,
soya beans for example. And celery, onions or shallots could replace the
leeks.