Kohada donburi is a comforting and satisfying rice bowl dish that features gizzard shad as the main ingredient. To make this dish, you will need kohada fillets, sushi rice, soy sauce, mirin, sugar, and a food processor. Start by cleaning the kohada fillets and removing any bones. Then, slice the fillets into thin pieces. Marinate the kohada slices in a mixture of soy sauce, mirin, and sugar for about 30 minutes. While the kohada is marinating, cook the sushi rice according to your preferred method. Once the rice is ready, place it in a bowl and top it with the marinated kohada slices. Garnish with some sliced green onions and pickled ginger for added flavor. Enjoy the delicious combination of tender kohada and flavorful rice in this satisfying donburi dish.