Here have a look at this for Dai Pai Dong.
What is a dai pai dong? A dai pai dong officially means a restaurant with a big license plate, but it refers to usually open air cooked food stalls, or Hong Kong street food stalls.
7:20 Sing Kee (盛記) - One of the legendary Hong Kong street food dai pai dong’s located right in the heart of Hong Kong central is Sing Kee (盛記). They serve all sorts of stir fried dishes that you order to make. I ordered a plate of sweet and sour pork ribs, chicken with ginger and spring onion, and clams in black bean sauce. The street food stall has an amazing atmosphere, slotted between sky rise buildings within an alley. The chef was pretty friendly, and when I was taking photos, he offered me a taste test of the sweet and sour ribs, right out of the wok. Sing Kee (盛記) is an amazing Hong Kong street food stall to eat at when you’re in Hong Kong. Total price - 169 HKD ($21.79)
13:27 Chan Kun Kee (陳根記) dai pai dong (Thank you to: StrippedPixel.com - Hong Kong & China Photography for this recommendation) - Finally for dinner, I decided we needed to take a little food mission to Fo Tan Station, Wo Che Estate, Sha Tin, Hong Kong, in search of a properly local Hong Kong dai pai dong experience. The restaurant was tucked back into a neighborhood, far removed from the everyday hustle of Hong Kong. Yet in the midst of the condos, there it was, Chan Kun Kee (陳根記), an incredibly huge open air restaurant serving all things Cantonese food. I ordered the drunken chicken, fried fish, mantis shrimp, and a spicy fish pot. The food was awesome, and the loud and hectic Hong Kong environment was perfect. This was a stop on today’s Hong Kong food tour that was well worth getting off the eaten path for. Total price - 402 HKD ($51.83)