What Bracha do you make on Sushi?
Is the rice the main part and therefore a mezonos, or is it just a toful (less-important ingredient) in which case I guess a shehakol?
It's also worth pointing out that those who follow the opinion of R' Shneur Zalman of Liadi (in his Seder Birchos Hanehenin 1:11, cited in Mishnah Berurah 208:25) should preferably eat sushi, or any other rice dishes, only during a meal of bread, because there are variant views as to whether rice is the orez mentioned in the Gemara, and this would affect the question of what the proper berachah is. He adds that if this is not possible, one should just say shehakol because of this doubt.
(Mishnah Berurah adds, though, that the majority view is that orez is indeed rice, and that common practice follows this identification - hence the sources quoted by Simchas Torah and mekubal.)
Berachot.com says its Mezonos and, and also writes (Q13, on that page)
What bracha to say on Sushi is a really difficult and fantastic question. I personally asked Rabbi Mandlebaum, the author of V'Zos Habracha, and he confirmed that we treat sushi as the third category of Ikar and Tofel- TaArovet Tofel. Therefore, the bracha would be dictated by the largest ingredient by volume. I am no expert in sushi, but I feel like there is more rice than there is fish or vegetables (counted each separately)