Quick recipe to use up leftover rice and requires no cooking.
Vegan; gluten-free and Nut-free.
Mix the rice, kelp flakes, salt and vinegar together in a mixing bowl.
Spread the Nori on a clean and flat surface. (The sheets I buy have markings on them, with the shiny side on the outside).
Cover the Nori sheet with the rice mixture in a thin and even layer leaving, an inch from all the sides.
Place the sliced fillings in a line all along the rice layer from one end to the other.
Start rolling the nori carefully, (I roll away from myself) while supporting the roll.
Use a drop of water to seal the other edge if required.
Cut into 2 inch pieces with a sharp knife (a blunt knife tears the nori, spilling the fillings out).
Eat fresh or, store covered in the fridge up to a couple of hours.