As far as I can tell they do a terrible job on their website publicizing what is GF but they are abundantly clear that you can't bring in your own food. I was able to track down the following. Fastbreak section 317 has a hotdog with a GF bun and reportedly a dedicated fryer for fries. Section 315, Westside Deli has Redbridge GF beer and cider.
Had some safe options in the nachos. Checked with guest services first.
They no longer have the gluten free cart... the only safe option now is a bunless weiner in section 111.
Glad they offer the option. Lady was extremely nice. Udi,s hotdog buns.
There's a GF cart on the first floor. The hot dog bun was a little dry, but edible & tasty enough. I was just glad there were some GF options.