Disk of rice: Instead of bread, I decided to make a disk of rice. I used frozen rice which I thawed by microwaving it. I just added "frikake" seasoning (bonito and wasabi flavor) and mixed. I used a ring mold and the back of the spoon to press the rice into thin disks. I then added vegetable oil with a splash of sesame oil (1 tbs) to a frying pan on medium heat. I made both sides of the rice disks slightly brown and crispy (#1).
Tuna: I sliced the red meat or akami of tuna relatively thinly and marinaded it in a mixture of sake and soy sauce (1:1) for 10 minutes and blotted off the excess marinade.
Wasabi creme fraiche: I mixed in real wasabi into creme fraiche. The amount is arbitrary but you could add quite a large amount of wasabi since the creme tends to tone down the heat. I tasted it a few times as I added more wasabi.
Poached eggs: I used pasteurized eggs and poached them as I described before. I like the egg white congealed but the yolk totally runny.
Assembly: I placed the rice disk (#1) on the plate and layered it with slices of the lightly marinaded tuna sashimi (#2), added the wasabi creme fraiche and chopped chives (#3). I then placed the poached egg on the top and further granished with Kosher salt and more chopped chives (#4).