Add the onion, carrots, celery, zucchini, garlic, thyme, sage, 1/2 teaspoon of salt and 1/4 teaspoon of pepper, and cook stirring occasionally until the vegetables are tender, about 5 minutes. Add the broth and tomatoes with the juice and bring to a boil. New York Cheesecake there. Add the mashed and whole beans and the spinach leaves and cook until the spinach is wilted, about 3 minutes more. Serve topped with Parmesan, if desired.