I did a search and found that there have been a few posts about places that serve Sichuan huo guo in Manhattan and Queens, but none of them have mentioned that Grand Sichuan on Lexington btwn 33 and 34 serves it. The Chelsea branch does not. According to the posts, the midtown and Chinatown Grand Sichuans serve it too.
The Lexington branch does not require calling ahead.
The huo guo is very authentic, and hit the spot on a winter night. Please note that if you get the pot half spicy and half non-spicy, the spicy side may be super hot to many people.
The menu is quite extensive, the only possible obstacle is that it is written in Chinese only. Everyone in the restaurant who had any modicum of Chinese character reading ability was eating huo guo. Everyone else was unknowingly missing out. If you can't read, I think you can just ask for huo guo and a variety of meat, veggies, seafood and/or tofu. Wan dou miao (watercress?, toumyou), kidney, squid, vermicelli, spinach and kikurage (tree ear fungus?) were all nice additions.
Incidentally this was our first time at the GSI Lexington location, and we ordered the pao cai too. It is identical to the pao cai that is served at the Chelsea location.
One upside of the groundhog not seeing her shadow is that we can look forward to enjoying warming ourselves up with more huo guo.