Wash the salad, dry it with a paper towel, tear it and put it in a bowl.
Wash the arugula, dry it, tear it with your hands. Chop the onion, finely chop the washed spinach. Radish cut into circles or halves of circles, if it is large.
Also slice the cucumbers. Mix all the vegetables.
Prepare the dressing. Mix sour cream with cream cheese and soy sauce. Season the salad and garnish with eggs on top.