Dice the chicken breast into small, 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 pan and sauté until golden brown and cooked through, then remove and set aside.
In the same pan, add the sesame oil, minced garlic, and grated ginger, sautéing for 30 seconds until fragrant.
Stir in the frozen peas and carrots, cooking for 2-3 minutes until tender and vibrant.
Push the vegetables to the side of the pan, crack the egg into the center, and scramble until just set.
Add the cooked brown rice and the sautéed chicken back into the pan, tossing everything together.
Pour in the tamari and stir-fry for 2-3 minutes until the rice is heated through and slightly crisp.
Garnish with thinly sliced green onions and serve immediately.