Heat oil in a 5-quart Dutch oven or saucepan over medium heat. Add flour and cook about 30 minutes, stirring constantly, until roux turns dark brown and develops a nutty aroma. Add green peppers, celery, onion and garlic; cook 10 minutes or until vegetables are tender.
Add tomatoes, okra, water, chicken, ham, parsley, TABASCO® Sauce, salt and bay leaf. Bring to a boil over high heat, reduce heat to medium, and simmer uncovered for 45 minutes, stirring occasionally.
Stir in oysters and simmer 10 minutes longer. Discard bay leaf. Serve over rice.
Makes 8 servings.
Nutritional information per serving: 404 calories, 36g protein, 35g carbohydrate, 13g fat, 113mg cholesterol, 1207mg sodium