Cook noodles according to package directions until done, drain well and toss with 2 teaspoons sesame oil. While noodles are cooking, combine water, peanut butter and soy sauce in small saucepan over medium low heat. Stir until smooth and well mixed and then add all remaining ingredients except vegetables. Toss with noodles and stir in vegetables of choice, or serve vegetables on the side. Serve at any temperature.