Minestrone Soup

large onion, chopped

large carrots, chopped

stalks celery, chopped

ounces green beans, cut into 1-inch pieces

tablespoons olive oil

water

-ounce package frozen chopped spinach, thawed

-ounce can chopped tomatoes, with liquid

-ounce can pinto beans, with liquid

-ounce can wax beans, with liquid

-ounce can garbanzo beans, with liquid

-ounce can black-eyed peas, with liquid

-ounce can red kidney beans

cubes vegetable or beef bouillon

medium zucchini, chopped

medium potatoes, peeled and chopped

freshly grated Parmesan cheese