Comment by mechanical_fish

This might help explain a feature of Japanese restaurants in America, one that I actually quite like: They are unlikely to serve portions that will strain you if you attempt to eat them in one sitting.

To first order, in unsophisticated American restaurants, the culture emphasizes bulk: If a quarter-pound hamburger is good, half a pound is obviously better, and if the restaurant offers you free fries they'll be surprised if you say no, because, hey, free fries! They will of course happily offer you boxes to take food home (there are restaurants at which one order will feed you for three meals) but in general restaurant eating is a system for packing on pounds, unless you constantly focus on eating just a tiny portion of everything you're served, or you eat in teams of two or three and order strategically.

Presumably they cover this in all the good Japanese-language guides to the USA, because otherwise it must be really stressful to the poor tourist, confronted with a stack of pancakes that one can barely lift, let alone finish eating.