Kradget
There's a documentary called "The Search for General Tso" that covers the history of American style Chinese food, and discusses some of the ins and outs of the business that may be interesting for you.

有一部名为《寻访左宗棠》的纪录片,讨论了美式中餐的历史,并探讨了一些可能对你感兴趣的业务内幕。

​OxCow
I was surprised I had to scroll this far for this answer. It's a really good documentary that talks about why they do it. TLDR; they figured out a formula/menu that works for American consumers and shared it among fellow immigrants.

我很惊讶我不得不滚动这么远才看到这个答案。这是一部非常好的纪录片,谈到了他们为什么这样做。简而言之:他们找到了适合美国消费者的配方/菜单,并与其他移民分享。

CRT_SUNSET
And to add to that, many of these immigrant families run restaurants purely for business reasons—they’re not particularly concerned about the traditions and authenticity of their cuisine.

此外,许多移民家庭经营餐馆纯粹出于商业考虑,他们并不特别关心他们的烹饪传统和正宗性。

Superplex123
Authenticity is just a marketing tool anyway. If the cook is good and the ingredients are good, then the food will be good. That's all there is to it to food of any kind. Do people think there aren't shitty Chinese food in China or something? Authentic food from any culture can suck too.

无论如何,真实性只是一种营销手段。如果厨师和食材都很好,那食物就会很美味。无论任何种类的食物,关键就在于这些。难道人们认为中国没有难吃的中餐吗?任何文化的正宗食物也可能很糟糕。