Onigirazu is a new type of Onigiri (rice ball).
Unlike Onigiri (rice ball), Onigirazu can be prepared quickly without making into a triangular or a ball shape but just by wrapping rice and the fillings in Nori seaweed sheet.
I think it is a great idea that you can wrap more fillings than the regular ball-shaped Onigiri. Also, it looks very pretty like sandwiches!!!