Dice the chicken breast into small, uniform bite-sized pieces and season with sea salt and black pepper.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the chicken to the skillet and sauté for 5-6 minutes until golden brown and cooked through, then remove and set aside.
In the same skillet, add the minced garlic, grated ginger, and the white parts of the sliced green onions, sautéing for 1 minute until fragrant.
Stir in the frozen peas and carrots, cooking for 2-3 minutes until tender-crisp.
Push the vegetables to one side of the pan and crack the egg into the empty space, scrambling it quickly until just set.
Add the cooked jasmine rice and the cooked chicken back into the skillet, tossing everything together.
Drizzle the tamari over the mixture and stir-fry for another 2 minutes to ensure the rice is heated through and well-coated.
Garnish with the green parts of the sliced green onions and serve immediately.