Before cooking--- put beef into any container with lid, add soy sauce and slice onions, then leave it in fridge at least 3hrs

When Cooking- Cook rice

Mince spring onions

Warm a pan, add in oil and minced spring onions

Take beef& sliced onions into the pan and stir-fry till beef being cooked

Turn off the fire(or power)

Add an egg on top, and mix all together

Put all of them on rice