Don't be a stranger!
I'm so sorry! Maybe someone will get the books you leave behind who has never read SK. You could be planting the seeds for new fans!
KC is a good city. It's "big" but also very small town feeling in many ways. I used to spend a lot of time there when I lived in Tulsa because it was only about 4 or so hours away.
Burger joint... hmmm... don't have a suggestion, but the plains states are beef country so most any diner style place will have good ones. Anyplace downtown in the "bricktown" area has great BBQ. That is kinda their thing.
Lenexa/Overland Park are some of the nicest suburbs. Make sure to go check out Fleming State Park around Lake Jacomo straight west of you near Blue Springs. From you I think you would take 1-435 towards downtown (north I think) and then exit on I-470 (east I think). There are a couple of exits that will get you there, but US 40 east off 470 is the fastest/closest to the area. Very pretty place.
Also, dunno if you went there for a job or whatever, but if you aren't working, The Mazzio's Corp in Overland Park is a great place to work. They own some pizza places (primarily in Tulsa) and restaurants, but the corp office is a good place to work. I had a couple of friends that were there and they loved it.
Anyway, good luck!