A tempting way to eat king oyster mushrooms, seasoned with Japanese mustard. Also good for bento since it has a robust flavor.
I received a lot of king oyster mushrooms as a gift, and was simmering them in syrup. Here's a spicy variation that uses Japanese mustard.
Please adjust the amount of mustard according to your liking.Start with 1 teaspoon if you're serving children.
Enjoy Japanese food around the world.