Dice the chicken breast into small, uniform bite-sized pieces and season with sea salt and black pepper.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and sauté for 5-6 minutes until golden brown and cooked through, then remove and set aside.
In the same skillet, whisk the egg and scramble quickly until just set, then remove and set aside with the chicken.
Add the carrots to the pan and sauté for 2 minutes, then add the minced garlic, grated ginger, and frozen peas, cooking for another minute until fragrant.
Add the chilled cooked brown rice to the skillet, breaking up any clumps with a spatula.
Pour in the coconut aminos and toasted sesame oil, tossing everything together for 3 minutes until the rice is heated through and slightly crispy.
Fold the cooked chicken, scrambled egg, and sliced green onions back into the rice mixture.
Toss one final time to combine and serve immediately.