I got the idea for this dish from a dinner that I had out in Whistler with my aunt. It was the encore of a prix fixe.
I got lucky; The guy that runs the meat/ fish department told me that he has excellent sable fish right now. He cut me a beautiful fillet, which I simply covered with a layer of miso paste, and baked at 350 for about 7 minutes. Placed it into a bowl, surrounded it with soba noodles, poured in some dashi, and halved shiitake mushrooms that had simmered in the dashi. Garnished with sliced green onions.
It left something to be desired; the visual appeal needs some work, as does the flavor. Next time I think I'll try flavoring the soba noodles with mirin and soy sauce. Maybe a julienne vegetable could help add visual appeal.
2ND TRIAL: This time I left the skin on, cracked pepper on, then poached the fish in dashi with a hint of miso for 5 or 6 minutes; It came out like butter.