Cook pasta according to package directions. Let cool in serving bowl.
Thaw edamame, if frozen. Chop asparagus into bite site pieces and steam until crisp tender. I did this in the microwave for about 1 minute. Slice the purple cabbage into strips. I used my food processor and it was quick and easy. Slice up the scallions.
Place all the veggies into the bowl with the cooled pasta.
In a small bowl, whisk together the salad dressing ingredients until smooth.
Add the dressing to the pasta and toss well until combined. Serve garnished with sesame seeds.