Cut the crab sticks, onion, and green onion into bite-sized pieces.
Add cooking oil to a pan and stir-fry the onion and green onion.
Add the crab sticks and lightly stir-fry.
Season with soy sauce, sugar, cooking wine, and pepper.
Place the stir-fried ingredients on top of the rice.
Finish by topping with mayonnaise and dried seaweed flakes.