Dice the chicken breast into small bite-sized pieces and season evenly with sea salt and black pepper.
Heat the avocado oil in a large wok or non-stick skillet over medium-high heat until it begins to shimmer.
Add the chicken to the pan and sauté until golden brown and cooked through, then remove the chicken and set it aside on a plate.
In the same pan, add the diced carrots and frozen peas, sautéing for about 3 to 4 minutes until the carrots are tender-crisp.
Stir in the minced garlic and grated ginger, cooking for 30 seconds until the aromatics are fragrant.
Push the vegetable mixture to the edges of the pan and crack the egg into the center, scrambling it quickly until just set.
Add the cooked brown rice and the prepared chicken back into the pan, using a spatula to break up any rice clumps.
Drizzle the coconut aminos and toasted sesame oil over the mixture, tossing everything together for 2 minutes until well combined and heated through.
Garnish the dish with sliced green onions and serve immediately while hot.