This (literally) underground Chinese joint is my top pick for Dim Sum in the city. Great service, lots of seating, and good for groups. The plates are served scorchingly fresh and fast, and they pride themselves on having a lot of options. If you like steamed pork buns, theirs are the best. You can order off carts or off the menu and the prices are reasonable. Definitely a winner.
Obligatory Title Pun: Hidden TREASURE on Dundas.
Menu Readability: In both Chinese and English.
Need to mention: Unlike some other places they don't get maddenly busy on the weekends.
What this place teaches me about myself: I'm a sucker for food on wheels.