Good tip! These don't work on quests like these when you need to serve something X number of times. Although I have been burning off a few mastery spice. It's been ages since we've seen a quest where we had to master something and was on 35 ish for weeks even while using a few and with all the new dishes to cook with the stamp recipes there have been quite a few dropping as I have been working on mastering the new dishes especially the ones with duck eggs.
Please call me cf or something for short I don't cook veggie sushi anymore unless I have to for something. I mastered that quite a while back since so many quests have asked for them. I try to stick cooking dishes which aren't mastered yet.