Sign up with Craver Nation only in the White Castle app, and enjoy a free combo meal! Have you even seen the movie “Harold and Kumar go to White Castle?” If you have, do you remember the expression on their faces at the end when they finally bite into the White Castle burger? Well, that could be your expression when you receive your free combo meal. So, remember sign up for Craver Nation. The sooner you sign up, the sooner you can enjoy your free combo. Offer not valid in Scottsdale, AZ.