In a salad shaker or mason jar, whisk or vigorously shake together all of the dressing ingredients.
Bring a large pot of salted water to a boil. Cook spaghetti according to package directions. While the pasta is cooking, chop the veggies, herbs and cashews. Drain pasta and place in a large bowl. Toss the noodles immediately with about a fourth of the dressing and the kale, letting the warm noodles soften the kale a little. When the noodles are slightly cooled, add the cucumber, carrots, bell pepper, cabbage, edamame, fresh herbs and more dressing, tossing until well combined. Fold in the cashews and serve at room temperature with another little drizzle of dressing and sprinkle of herbs.
