Sugar Sweet has become one of my recent favourites. I found this place over the summer and has now become part of my daily life lol. I like it because (1) it's my fave cuisine, HK style (2) big portions at a reasonable price (3) wide variety of menu options (4) sets come with soup & drink (5) milk tea is good (strong) (6) quick & simple.
I can't really recommend anything in particular because everything on the menu is a HK staple, you can't really go wrong. Special mention to their curry dishes - many people seem to come here for those. It gets quite packed here during peak hours doing local business. You'll see a mix of solo eaters to families in the after-school hours. It's the typical straight-forward "get things done" HK service, so don't expect much hospitality, although I already think they are nicer than most. You'll be full for sure. A lot of the time I even see the locals bring their Tupperware to take home extras. A very practical place, just the way I like it.