Teriyaki Corned Beef & Cabbage Kim Chee Tacos

Cut corned beef into 1" pieces, or bite-size cubes. Mix the soy sauce, sugar, and mirin into a sauce and set aside. Heat a frying pan on medium-high heat. When hot, add oil, onions and a pinch of salt and stir-fry 5 to 10 minutes until cooked. Remove onions from the pan and set aside. Reheat the pan and when hot, add corned beef pieces. Add in the sauce and stir-fry 2 to 3 minutes, until the sauce starts to thicken and coat the meat. Remove from pan. Heat tortillas if necessary, then assemble tacos by layering corned beef, onions, kim chee, and cheese on top.  Sprinkle with green onions to garnish.

Note: If corned beef is extra salty, add less sauce when stir frying.