I completely don't know what I'm talking about, but there is a Culinary Store/School in the Merchandise Mart.
Its on the first floor, across from the McDonalds.
I have spent some time at lunch, watching classes being held in the faux kitchen (real equipment though)
I'll try and get over there for a name, but I would think that, when not hosting classes, a place like this must be rentable
Bill-Aurora