What a pleasant surprise! We found authentic Vietnamese food in Nice. Everything we ordered was…read morefull of flavor; my favorite was the roast pork. The bánh xèo wasn't crispy, but considering we're in France, where the dish shares some roots with the crêpe, it might be a cultural twist. If you do order it, just ask for it crispy and it should be spot on.
Honestly, I don't think you can go wrong with any dish here. The service was excellent, and the owner, originally from the mountain city of Da Lat, brings a warm touch to the place. The ambience even reminded me of a small Vietnamese restaurant in Dallas. Cheers!