Heat oil in heavy pot over medium heat. Add onion and garlic, saute until onions are soft. Add chicken and cook until tender. In separate pot heat salted water until boiling and add pasta, cook according to package instructions. Drain, add dressing, combine with chicken and serve. Sprinkle with salt and pepper to taste. Cut chicken and toss to blen. 2-3 servings. 20-30 minutes prep time.