Nice sleuthing. I am aware of Quan Hue inside the Lion Plaza food court but did not mention them because they don’t serve many of the special little bites from the imperial city. And although I don’t know where their owners or cooks are from, the few little bite dishes they do serve seem more of a southern style. Here are the clues:
Banh khot - Their banh khot contains skin-on green mung beans and coconut milk? Unheard of in Hue and typical in the South.
In Hue they call the dish banh cang and they are typically broader, flatter, thinner. In Vietnam, they’ll often add a quail egg to each one.
Banh la - Here is the restaurant’s version
The Hue version is called Banh nam and usually contains real fatty pork mince along with the ground shrimp.
Perhaps they are using the more commonly known Southern terms but the Hue versions are a distinctly different style with different names. Their banh xeo is a typicall large plate sized one. I don’t know if it contains mung beans but that is southern. In Hue, people enjoy multiple small ones about hand sized.
All these dishes originated as small delicate specialties originally created to please the lords and emperors. Legend has it that one emperor demanded a different dish every day for a year which is how the Hue cuisine of delicate small bites emerged.
