Thinly slice the burdock root using a knife and soak in water for 5 minutes. Drain the water. Slice the green onion diagonally.

Wrap potatoes in damp kitchen paper and microwave at 600W for 5 minutes.

Heat salad oil in a pan and cook beef over medium-low heat until browned. Add burdock root and stir-fry for 3 minutes, then add green onion and cook until softened. Add seasoning ingredients and simmer until liquid is absorbed.

Mash the microwaved potatoes in a bowl, mix in the beef mixture, and let cool.

Divide the mixture into 4 portions, shape into oval patties, and coat with flour, beaten egg, and breadcrumbs.