You can try http://governorstumpys.com/ .... The Farmhouse in the bottoms 300 Delaware St, KCMO .... Jasons Deli (the chain)(all over) e.g. 12010 Metcalf Ave OPKS 66213 or 1100 S Main St KCMO 64105 (search for other locations) and some other places have OK rubans, I guess... but the bottom line (for me) is no place in KC gets it right 100%. They all screw up one part or another. I am very picky rueban connoisseur (even if I am not sure to spellit)

Now when I feel the need for Reuben I make my own. I cheat on some steps to make is super easy, but they are awesome and huge! I load them up with the highest quality CB, good SK, 1OOOisland, Swiss cheese and great rye bread and it does the trick.

Look up on Youtube for various methods... but be careful... some of those people are insane.

You can get all the ingredients you need to make 3-4 killer Reubans at Price Chopper and/or Hyvee for 20bucks (or way less on sale). Just dont skimp on the CB, cheese or Rye. I love PC's bakery baked rye.