This place is famous for their ‘vegan burger’ which is the only item available in English (and unironically the most expensive and small item on the menu, although I did go for it for the novelty) - warning, it is small! The usual Japanese menu has a few pictures of some other vegan options which are cheaper - go for the Curry Udon. Try the Amazake (hot drink) for a sweet ginger and candy tasting beverage. Great after a hike.