Heat olive in a large heavy stock pot. Saute the onion, carrots, celery,
& garlic. Add the tomatoes & spinach and cook a couple of minutes. Add
the cold water, beef base(more may be added to taste), squashes, thyme,
salt, pepper and cheese rind. Simmer a few minutes. Squash should be
crisp-tender. Stir in beans and heat through. Remove cheese rind and
serve with fresh grated parmesan cheese.