Pat the chicken dry with paper towels. Poke holes with a fork, cut it in half lengthwise, flatten with the back of a knife, and season both sides with salt and pepper.

Mince the green onion.

Mix the rice, minced green onion, salt, sesame seeds, and sesame oil in a bowl.

Spread the chicken flat, place the mixed rice near one edge, roll tightly, and secure with kitchen twine.

Place the sauce ingredients in a microwave-safe dish, add the chicken roll, cover with damp paper towels, spoon sauce over, and microwave at 600W for 3 minutes.

Flip the roll, cover loosely with plastic wrap, microwave at 600W for another 3 minutes, and let rest for 5 minutes.