Crumble rice with your hands.
Heat a large skillet over medium heat. Add vegetable oil and tilt the pan to ensure it’s coated.
Add egg. Allow to bloom, then scramble.
Add crumbled rice to the egg before it becomes cooked. Use a spatula to break up any clumps.
Add ham, tossing to distribute evenly.
Sprinkle with salt and pepper. Toss rice to make sure seasonings are distributed and to keep it from sticking.
Drizzle soy sauce on the edge of the pan and toss the rice to ensure it’s coated.
Add sesame and scallions. Toss to combine.
Press rice into a bowl to mold it. Release from bowl and serve.