Heat oil in large skillet on medium-high heat. Add sausage; cook and stir 2 minutes. Add celery, bell pepper and onion; cook and stir 3 minutes or until sausage is browned and vegetables begin to softened.  

Stir in water, tomatoes and rice mix. Bring to boil. Reduce heat to low; cover and simmer 20 minutes. Stir in corn; cover and cook 5 minutes longer or until rice is tender, stirring occasionally. Remove from heat. Let stand 5 minutes. Fluff with fork before serving.