The batter dipping? Super American-Chinese! Sooooo many things are batter dipped, deep fried, and swimming in various sauces. Orange chicken, General Tso's chicken, Honey Walnut Prawns (or chicken), Sweet & Sour Chicken/Pork/Shrimp, etc.
In American-Chinese most things are either deep fried, or stir fried. Dim Sum is an entirely different class (and usually only seen in cities with China Towns) and has "real" -aka not fusion- regional Chinese restaurants.
Our "standard appetizers" over here include : Deep Fried Spring Rolls, Deep fried Crab-Rangoon (wontons with crab & cream cheese), Pot Stickers (like Japanese gyoza), Neon Red BBQ pork slices, HumBao or other dumpling, chicken wings, Hot & Sour or Egg Drop or Won Ton soup. Sometimes one sees fried rice, fried noodles, or mu-shu on the appetizer list.
* Because of the warring in China in the 1800s & early 1900s our country has different provincial splits. West Coast USA is mostly Southern China Cantonese style (like the UK, because of the whole you guys owned/leased HongKong until just recently), while the East Coast USA is more ShangHai/BeiJing, & our Midwest is more Hunan/Szeschwan. <<< If I'm remembering correctly. >>> One WILL sometimes find shrimp toast in NewJersey & NYC, but I think that's that's mostly because of the JFK-Heathrow connection. I don't think it made it over here until the 1980s / 3rd wave of Chinese immigration?