– 7 ounce fresh sashimi-grade tuna (cut into bite-size) – ▢1/2 yellow onion (thinly sliced ) – ▢1 cup cucumber (thinly sliced ) – ▢2 tablespoons furikake – ▢1/2 tsp Japanese chili pepper – ▢2 bowl steamed white rice – ▢1/4 cup green onion or scallion (chopped, for garnish) Seasoning Sauce – ▢2 tablespoons soy sauce – ▢1 tablespoon mirin, Japanese rice wine for cooking – ▢1/2 teaspoon sesame oil