While breakfast in Hong Kong is pretty cheap in itself, I mean you can step out and have a bowl of something for less than $5USD, whether it's the street vendor or at a cafe shop.
J took me to a restaurant (yes a real restaurant with servers and pretty clothed tables) for breakfast. We caught the breakfast deal a few minutes away from the lunch (lunch=more expensive). The special, which everyone comes to Fung Shing ( 鳳城酒家) for, is a bowl of congee which is rice porridge and a plate of rice noodle rolls for $15.80HKD. That's roughly around $2.25USD which is insanely cheap.
The size were quite decent also. You would get completely full from both items. J and I shared since we wanted to leave room in our tummy for more food later.
The congee consisted of corn and minced pork (玉米猪肉碎粥). I'm not fond of corn in my soup or congee, but in anything else I guess I'm ok with. We came here twice and the first time we had the congee, it was a lot saltier than the second. J came 3 times, his second time (which was with me) was the only time it was salty...how lucky of me.
The beef rice noodle rolls (牛肉腸粉) were delicious. So soft with a slight chewiness to it, plus it had minced beef in the center. I would order this alone, and multiple plates of it.
Lastly, I decided to order something extra. The skin was good and the filling was just mediocre. It's like a lettuce and shrimp dumpling (生菜蝦餃), tasted a lot better if I used the soy sauce from the rice noodle.
It's a great place to visit considering the deal you get for breakfast, the only sacrifice you have to make is waking up early.