Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the lean ground chicken to the skillet, breaking it into small crumbles with a spatula, and cook until fully browned.
Stir in the diced yellow onion, minced garlic, and minced ginger, sautéing for 2 minutes until the aromatics are fragrant.
Add the shredded green cabbage, julienned carrots, and sliced red bell pepper to the pan.
Sauté the mixture for 5 minutes, stirring frequently, until the vegetables are tender yet retain a slight crispness.
Drizzle the coconut aminos and toasted sesame oil over the stir-fry, tossing everything together to ensure an even glaze.
Season the dish with sea salt and black pepper, then transfer to a large bowl to serve immediately.