This is a hamburger that uses boiled soy beans in place of ground meat. If I didn't tell you it was made of soy beans, maybe you wouldn't even notice the difference?
I had a lot of soy beans at home so I decided to make hamburger patties.
Roughly mince the vegetables and the soy beans. Be careful not to overdo it in the food processor. It's also fine without the sage and nutmeg.
Enjoy Japanese food around the world.