Add the seasonings to a small pot. When they start to boil, add meat, and simmer until the liquid is almost gone.
Egg Soboro: 1 egg, 2 teaspoons mirin, and a small amount of sugar.
Heat a small amount of oil in a separate small pot, pour in all the egg mixture, and scramble until crumbly. Place the meat and egg soboro with your favorite green vegetables on a bed of rice in a bento box.
Story Behind this Recipe
I created this recipe while I was trying to remember the taste of the bento that my mom used make for me when I was a kid.