Season the chicken with salt, cook it in a pan, and chop finely. Also chop the green onion finely.

Heat butter in a pan and sauté the green onion until golden.

Add the chopped chicken to the pan and stir-fry. Add tuna sauce and cook for 1–2 minutes.

Beat the eggs with a small amount of salt until smooth.

Heat cooking oil in a pan and pour the egg mixture, spreading it evenly like a thin omelet. When the edges are almost cooked, place the stir-fried chicken in a line on the egg.

Roll the egg around the chicken like a sushi roll and cook all sides evenly.

Let the roll cool slightly, then slice into pieces.