This is easier to make than you think. It's great for Christmas or a party. Once it gets cold, just warm it up in a microwave and it will be delicious.
I tried making an easy shepherd's pie using beef stew roux and it came out great.
Adjust the time and temperature when baking. It should be cooked just enough to be browned on the top. I used ground pork, but a mixture of ground pork and beef is OK, too.
Enjoy Japanese food around the world.