Amanda Haas
Cook pasta according to package directions, omitting salt and fat; drain.
While pasta cooks, heat oil from sun-dried tomatoes in a large nonstick skillet over medium heat. Add onion; sauté 5 minutes or until tender. Add red pepper and garlic; cook 1 minute. Add mushrooms, salt, and black pepper; sauté 4 minutes. Stir in lemon juice. Stir in pasta, chicken, and tomatoes. Reduce heat to low; cook, stirring constantly, 2 minutes or until thoroughly heated. Add cheese and basil; toss gently.