Yamato Lunch

It seems that there might be a misunderstanding. There is no specific food named "yamato lunch" that is commonly found in restaurants in the USA. However, I can provide some general information about yam varieties that might be served in restaurants.

In Japanese cuisine, there are several types of yams that are commonly used, including "yamaimo" and "naga imo." Yamaimo has a slimy texture and is often used in dishes like tororo konnyaku or yamaimo no nimono. Naga imo, on the other hand, is a long, thin yam that is commonly used in dishes like yaki imo (grilled yam) or imo-jyu (yam bowl).

If you come across a dish named "Yamato lunch" in a US restaurant, it is possible that it is a Japanese-inspired dish that includes yams as one of the ingredients. To learn more about the specific dish, I would recommend asking the restaurant staff for more information. They should be able to provide details about the ingredients and preparation methods used in the dish.