Healthy and colorful, vegetables add a crunchy texture and wonderful flavor to the take-out style sesame noodles.   Up the vegetables with some sauteed mushrooms, water chestnuts, red or yellow bell peppers, asparagus, sprouts, shredded carrots, or frozen green peas.   Cabbage and bok choy would also be wonderful.   Oh, and garnish with some chopped green onions (scallions).