In a large skillet lightly coated with cooking spray, saute chicken for 2-3 minutes or until chicken is no longer pink. Stir in the next 10 ingredients. Bring to a boil. Reduce heat; cover and simmer for 50-60 minutes or until heated through. , Stir in tomatoes; cover and simmer 10 minutes longer or until liquid is absorbed and rice is tender. Remove from the heat; let stand for 5 minutes. Discard bay leaf. Serve with green onions if desired.