at phyathai there is crap all to eat compared to other BTS stations. still, there is a street food tent that’s open for breakfast and lunch:
(this is the entrance, right under the BTS station–you can see taxis and motocycle drivers waiting for fares under the stairs.)
And this is the view from inside. I’m eating congee here! it’s like HK style, but with fish sauce as the flavouring, and with meatballs and ginger…