Brown pork with onion in a skillet until no pink remains. Drain fat.
Add ginger, garlic, mushrooms, cabbage, carrots, soy sauce, sesame oil, and about ¼ cup of chives. Cook 5 minutes, or until cabbage is cooked through.
Garnish with remaining chives, cilantro, and sesame seeds if using, and serve.
Notes
* To save time, you may use a coleslaw mix which cooks quicker. In step 2, add all ingredients except coleslaw mix, and cook 2 minutes. Then add the mix and cook 3 minutes, or until cabbage is cooked through.
Add sriracha or hot sauce to taste.
Refrigerate leftovers up to 4 days, or freeze for 1 month.