Sauce: Cut green garlic and dill. Mix with mayonnaise, yogurt, mustard and season to taste with salad dressing. Salad: Shred or chop the arugula salad. Mix with chopped radish, pour half of the sauce. Cut cucumber, tomato and onion. Gently mix them and put them on the mixture with arugula. Pour the rest of the sauce. Lightly blanch crab rolls, let them cool, cut them and sprinkle over salad. salad can make in a common bowl, or several small bowls separately.