Honestly, with such pristine quality fish I wouldn’t fuss much with any sauces (and I wasn’t all that impressed with the 3 sauce Omson sampler I got once 
).
A slight brush of tamari & maybe a smidgen of wasabi is all those gorgeous fishies need. Swoon.
I think I may have been gifted those. I still have one of the lemongrass and two of the sisig sauces left. They clearly weren’t a hit at casa lingua.
While this recipe calls for searing the tuna, you can absolutely serve this with raw tuna or hamachi. The last time I made this, I swapped out the sun dried tomatoes for some Campari ones that I dried in a low oven (~250F) for about an hour or hour and a half. I used raw kanpachi for the fish:
That sounds great! And I have some fennel, although it’s sous vide , and not raw
I’m sure this is obvious to many, but why tuna or hamachi, but not salmon? Is the salmon flavor too strong?
Maybe it’s already in the thread somewhere, but I found this today.
You could do salmon too. I think as long as it is a fish that you like raw already it would be fine 
I am about to order of the sashimi trio from True Fish
I might also get a pound of toro- I love toro, but can I eat all of this before…
These are on sale; Any opions about buying these for later ?
Shima Aji - Loin, Frozen (Japan )
Madai - Loin, Frozen (Japan)
I also want to try the Tai snapper from New Zealand , Branzino, and frozen shrimp, but will wait until my next order. 
I found this helpful
They’re here!
I preferred the thicker pieces of hamachi I got last week, but I assume it will taste the same.
I don’t know much about judging the quality of toro, but this seems like a pretty good deal.
It seems kind of sinewy,
I found this article which [notes]
" During the aging process, the meat loses its odor and in return gains taste and tenderness. …If the meat matures for too long,… the sinewy separating layers (suji, 筋) lose too much firmness and can no longer hold the fatty meat in shape"
Or…
Of course!
Interesting “toro”. Are you going to let the seller know?
I found a couple of photos of tuna cuts: (click on links to see pics. Discourse/this site is blocked by certain image hosting sites.)
https://i.imgur.com/1er46VX.jpg
https://i.imgur.com/9QRlg5g.jpg
Doesn’t matter which tuna cuts I eat in Japan, they are all delicious and quality is high. In my 2 photos you can see the colour and marbling difference of 2 cuts next to each other: Sashimi, the partner’s sushi (I don’t eat sushi). (And prices to match…)
Love eating fish in Japan! Love Japan! 
Yes, and thank you. They have not been particularly responsive to email.
I have been looking at some similar pictures, and am under the impression that these pieces come from near the tail.
The sinewy pieces in sushi restaurants often get chopped fine and the sinews are removed with tweezers. The finely chopped bits get used in tartare, maki, and also gunkan style sushi.
This is pretty much what the tuna belly I got from the fisherman dude looked like. When I cut the first piece, I had a similar experience, mostly from my lack of experience I think, and also because I belatedly realized that given the fat content, I should have either chilled it well or partially frozen it for ease of slicing.
The second piece looked better.
Went looking for a pic, but I guess I forgot to take a pic of the whole piece, just the finished dish.
.
Yes, the belly is the lower half, after the innards are taken out, so it is naturally a lot thinner than the upper portion.
Agree with what @Amandarama said – there’s a reason a lot of toro comes finely chopped (sometimes with daikon).
Thank you! Fine like minced? A coarse grind? I think I would call what I did minced, but without the tweezers @Amandarama mentions. .
Have you ever tried “aging” it? That seemed to come up several times .
I’ve had both, as tartare, sushi topping, or handroll filling.
When I tried my hand with the first piece, I think I ended up scraping big pieces of fish off the sinew, then chopping it into pieces, not mincing – that’s what the pic I linked to shows I think.
No, because I have had hives a couple of times and am a bit wary of things that boost the histamine quotient.
What I’ve seen is finely chopped, almost pureed. The chef uses a knife in both hands and just gets after it! There are pauses to pull sinew as it is seen, both before initial chopping and then after in subsequent pass throughs.
a knife in both hands and just gets after it!
Ahhh!
Yeah, I’ve had that. I was not a fan of the texture (too mushy for me).
I also generally prefer chūtoro over otoro.
So when you have the thinnest part of the belly, there isn’t much other choice, and it’s still expensive, which means you’re not going to get rid of it because you can’t cut it neatly, so maybe that treatment is an easy repurpose.
But the thicker parts (or belly from larger fish) give you a bit more room to maneuver.
@shrinkrap when I ordered from the fisherman guy, it all came skin-on / bloodlines-in, which also made maneuvering a bit easier because you had the skin to work against (acc to your article leaving the bloodlines in seems to help the fish keep better too, I didn’t know that back then).
I would have to imagine it is the easiest way to repurpose it I like the idea of how Morimoto presents his version, as a tartare with different add ins (caviar, wasabi, rice cracker, etc.) so the diner can add flavors and textures in these cases.
