A pain to input Chinese characters with my computer but figured it might be more useful to other hounds in the end, since the signs are in Chinese and the stalls don't really have names.
Got the above pancakes/crepes at a stall near the carpark in Chinatown, roughly across from Canton.
These savoury crepes are made just like their cousins in Normandy, using a similar spreader on a griddle. I got the version with 2 eggs (the ones with generic sausages looked less appealing), cracked over the crepe, then a generous sprinkle of chopped coriander leaf. The crepe is folded over, given a brush of umami rich bean sauce; another fold and another brush of a chilli sauce.
Didn't look particularly impressive as it was made, but it came together well, the eggs slightly fluffy and cooked just right, nicely enhanced by the judicious amount of sauces and airy coriander.
A good deal at £2.80. There's another stall closer to Baozi Inn that also makes it; will be trying it next.