In a large skillet, stir fry carrots,celery and garlic in oil for 4 to 5 minutes or until crisp tender.Add steak. Cook 3 to 4 minutes,stirring constantly,until steak is tender;drain.Reduce heat to low. Add water chestnuts,soy sauce and process cheese spread; stir until cheese is melted.Serve over cooked rice.Makes 4 to 6 servings.