Masuzushi (鱒寿司, literally 'trout sushi') is a kind of Japanese ekiben boxed meal sold on trains and train stations in Japan. It is a type of oshizushi (pressed sushi) and a well-known souvenir of Toyama.

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Masuzushi is made of vinegared trout sashimi on top of vinegared rice and wrapped in bamboo leaves.

• Japanese regional cuisine