6 sprigs parsley 2 bay leaves2 tablespoons olive oil or butter2 cups diced onions1 1/2 cups diced carrots1 1/2 cups diced celery2 tablespoons minced garlic 8 ounces button mushrooms, wiped clean, stemmed, and quartered (about 2 cups)4 quarts canned, low-sodium chicken broth 1 1/2 teaspoons salt3/4 teaspoon freshly ground black pepper1 cup diced zucchini (large dice) 1 cup diced yellow squash (large dice)10-ounce bag prewashed spinachSmall box of macaroni elbows1 package turkey kielbasa 1/2 cup grated Parmigiano-Reggiano cheese (optional) Kitchen twine