Very glad you posted a tutorial in one of the comments, I was very confused at the start :)
Once I got the hang of it, this is a very cute, unique take on the game theme! I love it. I think the controls needed to be improved slightly... being able to click on the things but not place them on the nori mat without pressing "enter" confused the heck out of me.
Cheers, good entry to the game jam and now I want sushi!