"From EatingWell: January/February 2013. Inspired by a popular Weight Watchers vegetable soup recipe. Think of this vegetable minestrone recipe as a starting point for other healthy soup variations, too: toss in leftover chopped cooked chicken or whole-wheat pasta or brown rice to make it more satisfying."
Heat oil in a large soup pot or Dutch oven (8-quart or larger) over medium heat. Add onions, celery, bell pepper and garlic; cook, stirring frequently, until softened, 13 to 15 minutes. Add cabbage, cauliflower, carrots and green beans; cook, stirring occasionally, until slightly softened, about 10 minutes more.
Add broth, water, tomato sauce, tomatoes, beans and bay leaf; cover and bring to a boil. Reduce heat and simmer, partially covered, until the vegetables are tender, 20 to 25 minutes. Stir in spinach and simmer for 10 minutes more.
Discard the bay leaf. Stir in basil. Top each portion with 1 tablespoon cheese.