Instead of using a premade mix, you can easily make a homemade version. Sukiyaki-style beef and tofu. The sweet and spicy soy-sauce-flavored ground beef sauce goes very well on rice.
I used ready-made instant mix, but it didn't taste right, so I tried making it my own way.
For more details, refer to my blog with larger photos. http://1yoshiis.seesaa.net/article/360165628.html
Enjoy Japanese food around the world.