In a small bowl, whisk together the gochujang, coconut aminos, rice vinegar, fresh ginger, and minced garlic to create the glaze.
Cut the chicken breast into bite-sized pieces and season evenly with pink Himalayan salt and black pepper.
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 until golden brown and cooked through; transfer to a plate.
In the same skillet, add the broccoli florets, sliced red bell pepper, and snap peas, stir-frying for 3-4 minutes until tender-crisp.
Return the chicken to the skillet and pour the gochujang glaze over the chicken and vegetables.
Toss continuously for 1-2 minutes until the sauce has thickened and beautifully coated everything in the pan.
Turn off the heat and drizzle with sesame oil, stirring once more to combine.
Serve the stir-fry over the warm cooked brown rice and garnish with sesame seeds.