Peel and roughly dice the onion. Clean, wash and chop the tomatoes. Wash and clean the cucumber, quarter it lengthwise and cut it into slices. Drain beans and corn on a sieve. Mix vinegar, salt, pepper, chilli and sugar. Fold in the oil. Mix the vegetables and marinade and let it soak through well.
Cut bacon into pieces and fry in a pan without fat until golden brown. Season salad to taste again. Fill into large cups with some lettuce leaves. Put some crème fraîche on the salad. Dust with chilli powder. Spread bacon on top and serve. Serve with Taco-Chips
With 8 people: