Remove chicken from bones; cut chicken into bite-size pieces, and set aside.
Cook sausage in a Dutch oven over medium heat, stirring occasionally, 5 minutes. Add bell pepper and onion; cook, stirring occasionally, 3 minutes or until vegetables are tender.
Stir in tomatoes and green chilies, broth, 1 cup water, garlic powder, and Cajun seasoning; bring to a boil, stirring occasionally. Stir in chicken and rice. Cover, reduce heat, and simmer 30 minutes or until rice is tender.