For sauce, stir together yogurt, mustard, and teragon. Set aside.
Spray wok/skillet with cooking spray coating. Stir fry carrot and garlic over medium-high heat for 1 minute. Add zucchini, stir fry about 3 minutes more till veggies are crisp-tender. Remove from Wok/skillet.
add oil to hot wok/skillit and add chicken. Stir fry about 2-3 minutes or until it is no longer pink. Return veggies to wok/skillet. Add sauce; toss to coat all ingredients with sauce. Cook and stir for 1 minuteor till heated through.