Defrost the tuna.If it is fresh tuna, frozen and defrost before eating.This is a important step,because they can be bacteries.

Put heat a skillet over high heat with only a drop of oil well distributed.Cut the loin into rectangular or square cylinders (depending on the thickness of the piece).

Coat the tuna rolls with both sesames.Once the pan is hot pour the tuna, but do not do it completely, just mark it on both sides to seal!

Cut the tuna into slices and present in the disk. Mix the sauce and wasabi apart and pour over the tuna.