In a bowl, whisk together all the sauce ingredients and set aside.
In a large ceramic or non-stick skillet, add zucchini noodles and just heat through. Pull off the heat before the zucchini is starting to soften and releasing liquid. Add olive oil if desired. Stir in the sauce to coat the zucchini evenly.
Divide between bowls. Top with sesame seeds, peanuts and/or sliced scallions.