Just toss the ingredients into a frying pan and steam-fry for 5 minutes! You don't need a pie crust, butter, or heavy cream.
I came up with a quick way to make a quiche.
It'd be done in ten minutes, but it's colorful and smells great. It's great to prepare for guests or as a snack, and is a great bento item!
Enjoy Japanese food around the world.