It's National Cheeseburger Day on September 18th. So, we're celebrating it all week here at Red Robin® with BOGO 50% off. Grab someone special and head on in for a well-deserved dinner and some quality time. You'll get 50% off any burger with the purchase of another of equal or greater value. And best of all, you can get this deal once every day for the whole week. We can't wait to see you all.