Cook and stir beef and onion in margarine in 10-inch skillet until onion is tender.
Stir in remaining ingredients.
Heat to boiling; reduce heat.
Cover and simmer until rice is tender, about 30 minutes.
Spanish Rice and Ground Beef: Substitute 1 pound ground beef for the cooked beef.
Cook and stir ground beef and onion in 10-inch skillet until beef is light brown; drain.
Continue as directed.