Season the chicken with the salt and Creole seasoning and put it in a 6-quart slow cooker.
Add the onion, bell pepper and celery around the chicken.
Stir together the crushed tomatoes, broth and garlic and pour them into the cooker.
Cover and cook on low for 3 hours, then fold in the smoked sausage.
Cover and cook on low for 2 hours more, then add the frozen okra.
Cook until the okra is tender and the chicken reaches at least 165°F, 45 to 60 minutes.
Break the chicken into large pieces, taste for salt and serve over hot rice.