Heat avocado oil in a large skillet or wok over medium-high heat.
Add the diced chicken breast and season with sea salt and black pepper, cooking until golden brown and cooked through.
Remove the chicken from the pan and set aside, then add the onions and carrots to the same pan, sautéing until tender-crisp.
Push the vegetables to the side, crack the egg into the pan, and scramble until just set.
Stir in the cooked brown rice, frozen peas, garlic powder, and ground ginger, breaking up any rice clumps.
Return the chicken to the pan and drizzle with coconut aminos and toasted sesame oil.
Toss everything together for 2 minutes until the rice is slightly toasted and fragrant.
Garnish with sliced green onions and serve immediately.