Dressing: I mixed soy sauce (2 tsp), dark sesame oil (2 tsp), sugar (1/4 tbs), rice vinegar (1/2 tsp) and Chinese hot sauce/paste* (1/6 tsp or more as you like), grated garlic (1/4 tsp) and ginger root (1/4 tsp) in a small bowl.
Scallion: I just sliced a scallion thinly on the bias including some of the green parts.
Just dress all the ingredients and serve. It is quite good and quite different from similar salads I made before. We like both variations very much. This one has more assertive flavors from the garlic, ginger, sesame oil as well as red chili paste.
(* "Tobanjan" Hot bean sauce 豆瓣酱 or Chili garlic sauce 蒜蓉辣椒醬, I used the latter. You could substitute with any hot sauce you may have.)