Cook spaghetti according to pkg directions. Meanwhile in a large saucepan, combine the soup, water, lemon juice, basil, garlic powder, salt and pepper. Stir in veggies; bring to a boil. Reduce heat; cover and simmer for 3-5 minutes or till veggies are tender.
Stir in chicken; heat through. Drain spaghetti; add to chicken mixture and toss to coat. Sprinkle with parmesan cheese.