Heat a large cast-iron skillet or wok over medium-high heat and add half of the toasted sesame oil.
Season the diced chicken breast with garlic powder, ground ginger, sea salt, and black pepper.
Sear the chicken in the hot skillet until golden brown and cooked through, approximately 5-6 minutes.
Push the chicken to the outer edges of the pan, add the remaining sesame oil to the center, and crack in the egg, scrambling until just set.
Incorporate the frozen peas and carrots, sautéing for 2-3 minutes until they are bright and tender-crisp.
Fold in the cooked brown rice and pour the coconut aminos over the mixture, tossing constantly for 2 minutes until the rice is fragrant and slightly toasted.
Remove from heat, garnish with fresh green onions, and serve immediately for a clean, nutrient-dense meal.