Cook the chicken filet in boiling salted water for about 20 minutes. Mix sour cream, 2 tablespoons water, honey and mustard. Coarsely chop the nuts. Clean, wash and drain the salad. Take the fillet out of the water, let it cool down a bit and cut it into slices.
Arrange on a plate with the salad. Pour sour cream over it, sprinkle with nuts and garnish with parsley.