We are having a mini-reunion of 5 former Brooklynites. I'm coming up from DC to Penn Station, so a place mid-townish for an late lunch where we can linger for a couple of hours would be great. One of us has allergies and avoids mediterrian/mexican (haven't figured out the common food thread to that yet). I'm a foodie, but trend towards ethnic rather than upscale american. Suggestions appreciated.