Pat the chicken breast dry with a paper towel and cut into small bite-sized pieces.
In a small bowl, toss the chicken with sea salt, black pepper, garlic powder, ground ginger, and arrowroot powder until evenly coated.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the chicken to the skillet and cook until golden brown and crispy on all sides, approximately 5 to 6 minutes.
Push the chicken to one side of the skillet, crack the egg into the cleared space, and scramble until fully cooked.
Add the diced carrots and frozen peas to the pan, sautéing for 2 minutes until the vegetables are tender-crisp.
Stir in the cooked brown rice and coconut aminos, tossing everything together for another 2 minutes until the rice is heated through and slightly toasted.
Garnish with sliced green onions and sesame seeds before serving.