Boil the beans in salted water until cooked, drain and let cool down a little.
Halve the tomatoes and dice the avocado.
For the dressing, mix the ingredients well and add to the beans with the onions and sun-dried tomatoes and let steep for about 30 minutes. Mix in the tomatoes and avocado. Finally add the peanuts.
This salad goes well with smoked fish or cold roasts.