I have Peking duck no pancakes, ask for lettuce to use as wraps, tiny tiny amount of sauce, chop suey, or chow mein I find I am ok with a few noodles, I find ribs difficult as usually cooked in sticky sauce even if there is no sauce on them. Sides of stir fry veg. The biggest thing is make sure they don't use MSG its lethal stuff for BS.
Avoid curries as unlike Indian curries they are usually thickened with flour. Have a nice time and enjoy the company, way more important than the food.
I do Queen eating quite a lot (putting a tiny bit of something on your plate and push it around a bit whilst chatting away - people tend to think you've eaten some - this is what our queen and does!)