Heat a pan with 1 tbsp vegetable oil and stir-fry ground beef, zucchini, and bell pepper until cooked.

While the beef and vegetables cook, beat eggs with a pinch of salt and prepare egg sheets by frying them into thin rectangular shapes.

Once the vegetables are cooked, add rice and oyster sauce to the pan and stir-fry until well combined.

Blanch the ham slices in boiling water or lightly pan-fry them.

Shape the stir-fried rice into elongated rice balls.

Wrap each rice ball with the prepared egg sheets.

Fold the ham slices into a ribbon shape and tie them with blanched chives.