Cook and stir sausage, onion and celery in Dutch oven until pork is no longer pink and onions are tender. Drain fat. Stir in flour; cook and stir 1 minute. Gradually stir in chicken broth; bring to boil, stirring occasionally. Stir in wild rice and vegetables. Reduce heat and simmer 5 minutes or until vegetables are tender. Stir in cheese, stirring just until cheese melts. Season to taste with salt and pepper, if desired.