Slice the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
In a small glass bowl, whisk together the coconut aminos, toasted sesame oil, grated fresh ginger, and minced garlic to create the teriyaki glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet and sauté for 5-6 minutes, stirring occasionally, until the pieces are golden brown and cooked through.
Remove the chicken from the skillet and set aside on a plate.
In the same skillet, add the broccoli, sliced bell peppers, and sugar snap peas, sautéing for 3-4 minutes until they are bright and tender-crisp.
Return the chicken to the skillet and pour the teriyaki glaze over the chicken and vegetables.
Toss everything together for 1 minute until the sauce is heated through and coats the ingredients beautifully.
Portion the fluffy brown rice into a bowl and top with the chicken and vegetable mixture.
Garnish with sesame seeds and sliced green onions before serving warm.