In a small bowl, whisk together the coconut aminos, honey, minced ginger, and minced garlic to create a clean teriyaki glaze.
Season the diced chicken breast with sea salt and black pepper.
Heat one teaspoon of avocado oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and cook until golden brown and cooked through, about 5-7 minutes, then remove and set aside.
Add the remaining teaspoon of avocado oil to the same skillet and toss in the broccoli florets, sliced red bell pepper, and snap peas.
Stir-fry the vegetables for 3-4 minutes until they are tender-crisp and retain their bright color.
Return the chicken to the skillet and pour the teriyaki glaze over the mixture, tossing constantly for 1 minute until the sauce thickens slightly.
Serve the stir-fry over the warm cooked brown rice and garnish with toasted sesame seeds.