Tomato Soup is a creamy and yummy soup prepared with tomatoes, onion, garlic, celery, carrot, vegetable/chicken broth and basil leaves. The very basic preparation of the tomato soup includes adding sauteed onions and garlic to the rest of the ingredients that are simmered until they are tender. Tomato soup is best enjoyed when served in warm soup bowls and garnish with a couple of parsley sprigs or basil sprigs.