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 skillet or wok over medium-high heat until shimmering.
Add the chicken to the pan and sauté for 5-6 minutes until golden brown and cooked through, then remove and set aside.
In the same pan, add the diced carrots and sauté for 3 minutes before adding the frozen peas and the white parts of the sliced green onions.
Push the vegetables to one side of the pan, pour in the whisked egg, and scramble until just set.
Add the cooked brown rice, the cooked chicken, sesame oil, tamari, garlic powder, and ginger powder to the pan.
Toss everything together over high heat for 2-3 minutes until the rice is slightly crispy and the flavors are well-combined.
Garnish with the sliced green parts of the green onions and serve immediately.