03Add chicken stock and tomatoes to the pan. Stir with a wooden spoon until tomatoes begin to break down and form a sauce, about 10 minutes. Add heavy cream, bring to a boil, reduce heat to low, and return chicken pieces to pan. Cook until chicken is heated through and coated with sauce, 5 to 10 minutes. Serve, if desired, with steamed rice or small tubular pasta like ziti.