Hungry office workers don't queue up at Yen Ta Fo JC for the ambiance - the pushcart rubs shoulders with a towering metal construction barrier and has a pleasing view of a zillion telephone wires. They come for a bowl of neon-pink yen ta fo noodles, which many cite as the best in Bangkok.
It's a rarely known among foreigners, but should be. The rice noodles, slightly sweet and sour broth whose illuminous pink colour comes from the tao huu yee (red rice fermented tofu), soft lightly fried tofu, bouncy Thai fish balls, and the crisp squid would surely be a hit if more farang knew of its existence.
There's a row of five or six small tables sat along the pavement under hastily hung awnings, not nearly enough to cater for students and office workers that descend for their lunch. Breakfast crowds can notch up too. If you come at peak hours, expect to share a table and brave the owner's famously sharp service (you better know what you want before they take your order). Yen Ta Fo JC open 6am and last orders are around 1.30pm or whenever they've sold out. Your best bet without having to queue is the late morning. Note that they close at weekends.