Dice the chicken breast into bite-sized pieces and season with sea salt and black pepper.
Heat a large skillet or wok over medium-high heat with half of the sesame oil.
Add the chicken to the pan and cook until golden brown and cooked through, about 5-6 minutes, then remove and set aside.
In the same pan, add the remaining sesame oil along with the minced garlic, grated ginger, and frozen peas and carrots.
Sauté the vegetables for 3-4 minutes until tender and fragrant.
Push the vegetables to the side, crack the egg into the center, and scramble until just set.
Add the cooked brown rice and the cooked chicken back into the pan, stirring to combine everything.
Drizzle with coconut aminos and toss well to ensure the rice is evenly coated and heated through.
Garnish with sliced green onions before serving.