The examples you list exist in China, and therefore in Hong Kong, but are often modified for Western tastes in the US. That being said, I would suggest you try dishes like these (or other familiar-sounding ones) in restaurants while you're there. If you find the food to your liking, then you can start to explore more unfamiliar dishes.
Luckily, Hong Kong is definitely a food culture, so you can find just about anything there, including authentic Chinese cuisine from all regions of China, cuisine from just about everywhere else in Asia, steakhouses, Belgian mussels and fries places, Italian restaurants, English pubs....
For the flip side of Westernized Chinese food, you might find cha chaan tengs interesting; they serve Western food adapted to Cantonese tastes. A sample list:
http://www.timeout.com.hk/restaurant...haan-teng.html