Pat the chicken breast dry with paper towels and dice into small, uniform cubes.
Season the chicken cubes evenly with sea salt and black pepper.
Heat the avocado oil in a large non-stick skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet in a single layer and cook for 5-6 minutes, stirring occasionally, until golden brown and cooked through.
Remove the chicken from the pan and set aside on a plate.
In the same skillet, add the diced carrots and sauté for 3 minutes until they begin to soften.
Add the chilled cooked brown rice to the pan, breaking up any clumps and pressing it down firmly to allow the bottom to crisp up for 2 minutes.
Stir in the frozen peas, minced garlic, and grated ginger, cooking for an additional 2 minutes until fragrant.
Return the cooked chicken to the skillet and drizzle with the coconut aminos and sesame oil.
Toss all ingredients together for 1 minute to well incorporate the flavors and garnish with thinly sliced green onions before serving.