There's not enough Chinese restaurants in Chinatown that does traditional Hong Kong breakfast. Cha Chan Tang is one to consider since it's the most spacious and eye-appealing.
J and I came in for breakfast before I had work, service wasn't the fastest but it was quite average. Just like any Americanized Chinese restaurant, they have your letterized meals and each comes with coffee or milk tea of your choice; ie. A=macaroni in soup with ham.
Something really simple like Satay Beef Instant Noodle Soup is done really well. I can always make instant noodle but satay beef is definitely something I wouldn't be willing or wanting to whip up at home out of the blue. The meal is $4, well $3 to be more accurate since a drink is usually around $1.
J got Preserved Egg w/ Pork Congee along with Soy Sauce Fried Noodles. Both of these for just $3.75 which is a really good deal.
Portion size is generous, especially when you're only one person. I'm not crazy about congee but I do really enjoy the soy sauce noodles. Combine the congee and noodles in one bite and it's quite heavenly. I always think that the congee is bland and the noodles are more on the oily and dry side, therefore they're a perfect match when ordering and eating them together.
The atmosphere of Cha Chan Tang does give you that hint of Hong Kong cafes because of the stand off-ish feel. I mean, you sit, you order, you're served, you eat, you pay, you leave. There's hardly ever any smiling or nodding or goodbyes. It's just how it works. If you ever went to Hong Kong, you'd know what I mean.
Cha Chan Tang
45 Mott St
New York, NY 10013