In a large saucepan, saute onion in oil until tender. Add garlic; cook 1 minute longer. Add the tomato; simmer for 5 minutes. Add the broth, water and seasonings. Bring to a boil; cook for 5 minutes. Add beans and macaroni; return to a boil. , Reduce heat; simmer, uncovered, until macaroni is tender, about 15 minutes. Sprinkle with parsley.