Vegetable Onigiri is a vegetarian-friendly variation of Onigiri that is filled with a variety of vegetables. To make Vegetable Onigiri, start by cooking sushi rice and letting it cool slightly. Meanwhile, prepare the vegetables by chopping them into small pieces and sautéing them in a pan with some oil. You can use a combination of vegetables such as carrots, mushrooms, spinach, or bell peppers. Once the rice is ready, take a small portion and flatten it in your hand. Place a spoonful of the sautéed vegetables in the center and shape the rice into a ball or triangle. Wrap the Onigiri with a strip of nori seaweed and it is ready to be enjoyed. Vegetable Onigiri is a healthy and flavorful snack that is packed with vitamins and minerals. It is a great option for vegetarians or those who want to incorporate more vegetables into their diet.