Porridge stall outside huai khwang night market stays open until 5am even after the main market winds down around 3am. Proper jok with century eggs and crispy pork for 40 baht. Perfect drunk food that wont destroy your stomach

Som tam cart on sukhumvit soi 11 sets up around 2am for nightlife crowd. They make it mild for drunk foreigners but still tasty. 60 baht with sticky rice