Dice the chicken breast into small, uniform cubes and season with sea salt and black pepper.
Finely dice the carrots, mince the garlic, and grate the fresh ginger.
Heat the sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the chicken to the pan and sauté until golden brown and cooked through, approximately 5 minutes.
Push the chicken to one side of the pan, crack the egg into the empty space, and scramble until fully set.
Stir in the carrots, garlic, and ginger, cooking for 2 minutes until the vegetables begin to soften.
Add the cooked brown rice, frozen peas, and tamari to the skillet.
Toss all ingredients together and cook for another 3 minutes until the rice is slightly toasted and the peas are heated through.
Remove from heat and garnish with thinly sliced green onions before serving.