I'm afraid the old thread is so old it would get missed..
I didn't see the following in the first level responses:
Vietnamese beef salad. Another one where some restaurants now cook it by default.
For sushi lovers, make sure you try raw shrimp sometime, the normal shrimp sushi is cooked, like the other shellfish. I think I recall raw abalone, but not in chicago, only where they can get it truly fresh.