Roast the walnut kernels in a pan without fat, remove. Wash the tomatoes and peppers. Halve the tomatoes. Clean the paprika and cut into small cubes. Peel carrot and cut lengthwise into thin slices.
Wash, clean and shake the salad dry. Coarsely chop the walnuts. Wash parsley and chives and shake dry. Cut the chives into fine rolls. Pluck the parsley leaves and chop them coarsely.
Mix vinegar and orange juice, season with salt, pepper and sugar. Add the oils. Mix the dressing with the tomatoes, diced peppers, carrot slices, lettuce and herbs. Arrange salad on plates.
Cut cress from the bed and sprinkle over the salad with the walnuts.