Dice the chicken breast into small, uniform bite-sized pieces and season with sea salt and black pepper.
Finely dice the carrots, mince the garlic, grate the fresh ginger, and thinly slice the scallions, separating the white and green parts.
Heat a large non-stick skillet or wok over medium-high heat and add the toasted sesame oil.
Add the chicken to the pan and sauté until golden brown and cooked through, approximately 5-6 minutes.
Stir in the carrots, garlic, ginger, and the white parts of the scallions, cooking for another 2 minutes until the vegetables begin to soften.
Push the chicken and vegetable mixture to one side of the pan and crack the egg into the empty space, scrambling it until just set.
Add the cooked brown rice and frozen peas to the pan, stirring everything together to combine.
Drizzle the tamari over the rice mixture and toss well, cooking for an additional 2-3 minutes until the rice is heated through and slightly crispy.
Remove from heat and garnish with the green parts of the scallions before serving.