Heat the Blackstone griddle to medium-high heat. Add 1 tablespoon of sesame oil to one side of the griddle.
Season the diced chicken breast with salt and pepper, then add to the hot oil. Cook for about 5-7 minutes until the chicken is fully cooked and nicely browned. Remove the chicken and set aside.
On the same side of the griddle, pour the beaten eggs. Scramble until they're fully cooked, then mix them with the chicken.
On the other side of the griddle, add the remaining tablespoon of sesame oil and toss in the minced garlic and ginger. Sauté for about 30 seconds until fragrant.
Add the mixed vegetables and sauté for another 2-3 minutes until heated through.
Stir in the day-old rice, breaking up any clumps. Pour the soy sauce over the rice and mix everything thoroughly.
Add the chicken and scrambled eggs back into the mix, combining all the ingredients well.
Finally, toss in the sliced green onions and check for seasoning, adding more salt and pepper if desired.
Cook everything for an additional 2 minutes until everything is warm and well combined.
Notes
Serve garnished with fresh cilantro and sliced green onions.