Soei
Formerly in a train station, they moved to new premises in Phaya Thai and have never been better! The owner cooks each order individually so it can be very slow service but the quality is worth the wait.
Highly recommend the wasabi prawns and egg drop soft shell crab curry, but keep an eye out for specials written on the wall in Thai, mackerel heads and similar often feature and are always very good
Instagram: @soei_restaurant