Heat avocado oil in a large skillet or wok over medium-high heat.
Season diced chicken with sea salt and black pepper, then sear until golden and cooked through.
Remove chicken from the pan and set aside.
In the same pan, add the frozen peas and diced carrots, sautéing until tender-crisp.
Stir in the minced garlic and grated ginger, cooking for 30 seconds until fragrant.
Push vegetables to the side and crack the egg into the center, scrambling until set.
Add the cooked brown rice and chicken back to the pan, stirring to combine.
Drizzle with tamari and toasted sesame oil, tossing everything until the rice is slightly crispy.
Garnish with sliced green onions and sesame seeds before serving.