Dice the chicken breast into small, even bite-sized pieces.
Heat the extra virgin olive oil in a large skillet or wok over medium-high heat.
Add the chicken to the pan, season with sea salt and black pepper, and sauté until golden brown and cooked through.
Remove the chicken from the skillet and set it aside on a clean plate.
In the same skillet, add the toasted sesame oil followed by the minced garlic and fresh ginger, sautéing for 30 seconds until fragrant.
Toss in the frozen peas and carrots, cooking for 2-3 minutes until they are tender and bright.
Push the vegetables to one side of the pan and crack the egg into the open space, scrambling it quickly until fully set.
Add the chilled cooked brown rice and the cooked chicken back into the skillet.
Pour the tamari over the mixture and stir-fry for 3-4 minutes, pressing the rice down occasionally to allow it to get slightly crispy.
Remove from heat and garnish with thinly sliced green onions before serving.