In a 6-qt. stockpot, cook beef over medium heat until no longer pink, 6-8 minutes; crumble beef; drain. Add tomatoes, green peppers, onion, chiles and seasonings; bring to a boil. Reduce heat; simmer, covered, 20-25 minutes or until vegetables are tender., Prepare rice according to package directions. Serve with stew and, if desired, pepper sauce.