Use a sharp slicing knife to cut the tuna into 1 inch cubes. Remove the blood line and skin from the tuna if necessary
Place the tuna in a medium metal bowl. Add the sliced red onion, scallion, nori, soy sauce, sesame oil, oyster sauce, fresh ginger, pickled chili and salt. Gently mix with a spoon until the ingredients are combined.
Split the cooked rice evenly between two bowls. Place the tuna and cucumber artfully on top of the rice.
Optionally garnish with pickled ginger and wasabi.
Pro Tips
This recipe can be doubled for four.
The pickled ginger and wasabi are optional garnishes.