Cut the duck and cabbage into bite-sized pieces.
Finely chop the onion and garlic.
Add the duck to a pan and sauté over medium heat.
Once the duck is cooked, add the onion and garlic and continue to stir-fry.
Add the cabbage and salt, then stir-fry until the cabbage just starts to wilt.
Spoon the stir-fried ingredients over rice and finish with a drizzle of sesame oil.