Onigirazu is a Japanese dish that resembles a sandwich but is made with rice instead of bread. It typically consists of a square or rectangular shape, with layers of sushi rice, fillings, and nori seaweed. The fillings can vary widely, including vegetables, meats, and sauces, allowing for a customizable meal. This dish is often enjoyed as a portable lunch option, making it popular for picnics and bento boxes. Onigirazu is easy to prepare and can be made in advance, providing a convenient and delicious way to enjoy traditional Japanese flavors in a modern format.