Chop potato and onion into fine pieces

Boil potato for 10 minute in boiling water. Remove and drain it well

In a pan, add olive oil and onion on medium heat. Saute them for 1 minute then add ground beef

After the beef golden brown, add potato and sweet soy sauce. Saute them until all is cooked

Add a pinch of salt and pepper. Adjust it to your taste. Remove and serve it.