I'm posting this on a Friday because you'll need the extra day to make the mac and cheese. You'll also need the extra time to clear your schedule and buy big enough sweat pants for when you're eating this.
I hate starting this off like I would a term paper in college, but a Reuben is defined as:
a hot sandwich of corned beef, Swiss cheese with Russian dressing, and sauerkraut. These are grilled between slices of rye bread.
With all the brain power at the Food Network, you'd think they would know this.