Lay two nori sheets side by side on a sushi mat with their longer edges touching. Use your fingers to gently wet the touching edges of the nori sheets, then overlap the two sheets by about an inch.
Measure out 1 cup of the cooled sushi rice and use damp fingers to spread the rice out so that it goes about 2/3 of the way up the two nori sheets, leaving about 1 inch of nori showing at the bottom of the sheets.
Add the tofu, cucumber, avocado and two heaping tablespoons of kimchi to each wrap. Wet the nori at the bottom and gently begin to roll the sushi, using the mat to help you out. Wet the remaining 1/3 of the nori that is visible at the top so that it will adhere to itself as it rolls. Make sure that the rolls are n ice and tight and add a bit more water if the aren't staying together.
Wrap the burritos in tin foil or plastic wrap, then slice in half. This just helps to keep all the goodies from falling out of your burritos.
Enjoy the burritos right away or store them in the fridge for up to three days of easy access meals