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 brown and cooked through.
Remove chicken from the pan and set aside; add sesame oil to the same pan.
Sauté diced carrots, minced ginger, and garlic until the vegetables are tender and fragrant.
Add the chilled brown rice and peas to the pan, pressing the rice down to develop a crispy exterior.
Push the rice mixture to one side, crack the egg into the empty space, and scramble until fully set.
Incorporate the cooked chicken and tamari, tossing all ingredients together until well combined and hot.
Remove from heat and garnish with sliced green onions for a fresh bite.