Preheat oven to 400°F and line a large baking sheet with parchment paper.
Dice the chicken breast into 1-inch cubes and chop the broccoli, bell pepper, and snap peas into bite-sized pieces.
In a small bowl, whisk together coconut aminos, toasted sesame oil, honey, minced ginger, and minced garlic to create the clean teriyaki sauce.
Place the chicken and vegetables on the baking sheet, drizzle with avocado oil, and season with sea salt and black pepper.
Roast for 15-18 minutes or until the chicken is cooked through and the vegetables are tender-crisp with slightly charred edges.
Remove from the oven, drizzle the teriyaki sauce over the hot chicken and vegetables, and toss well to coat.
Garnish with sesame seeds before serving.