Ok What major streets are you located near? I know of some on the South Side (born and raised South Sider) That might be able to suit your needs. Honey one is very good owner and son are cool. Fat Willies gave me bubble gut one time. Been meaning to try the Pork Shoppe on Belmont.
A new event space has opened at 2124 W Lawrence. It's an old Italian restaurant with a full kitchen and bar. They have a vintage arcade room in back and stage with sound equipment for a band, DJ, etc. It has a very nice, homey feel, not super formal. Good for adult or kid parties, performances and meetings. You can have them cater whatever you want or bring in your own. Check em out at http://www.Facebook.com/urbaninterest Mark is the contact 773.474.2305
Big Bricks @ 3830 N Lincoln. Great service and ribs on their huge smoker in the bsmt. Wide assortment of other food. Owner was v. friendly and there is an upstairs space that could accommodate a party.