Look over the menus to see which ones have basic ingredients that sound good to you. Chefs will be able to create something tasty building off whatever basic ingredients they have. Use that to narrow down the list. Then, take a look at atmosphere and transportation options and figure out which one looks most like the one that's the best fit for you. All of the signature restaurants do a great job with allergies. Personally, I'd love to try Narcoosies, Jiko and California Grille, in that order, but that's just my personal preference.