Got turned onto this place recently by a friend at work. Here's what I have had so far in my three visits:
1) Beef Chow Fun (Spicy)
A benchmark for me (since its one of my favorite comfort food dishes) for any Cantonese place. Tasty, nicely cooked noodles, lightly varying textures - from dead soft to slightly chewy. Nice contrasts, but all in a the beautiful slippery goodness that is a rice noodle! Properly greasy (hate too dry or too oily versions). Beef tender, though unfortunately somewhat light in terms of quantity. Limited veggies as well, but for $5 not surprising. Generally a very nice post hangover lunch option.
2) Beef Tendon Noodle Soup
Very tasty. Came in a slightly spicy beef broth spiked with spices. Serious portion of tendon with soft turnips mixed in. Tendon pieces were not spectacular (not too many of those unctuously soft meat/fat pieces), but generally good and flavorful. Nice amount of thin egg noodles that still had some bite. Huge portion for $5.
3) Roast Pork over Rice
Simple quick grab. Standard meat over rice but roast pork was decent. Fine if its what your craving.
Do not be deterred by the steam table as you walk in serving bourbon chicken (usually a major warning sign for me!). Walk beyond and wait in fast moving line (there will be one at lunch) and order from the menu or one of the specials taped up.
This is not a destination joint, but for someone who works within walking distance who's looking for a tasty cheap lunch, its a definite recommend. And for its location (midtown, not Chinatown), its a gem.
48 W 48th St (between 5th and 6th)