Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Chop the broccoli into bite-sized florets and slice the red bell pepper into thin strips.
Place the broccoli, peppers, and snap peas on the baking sheet. Drizzle with avocado oil and sprinkle with sea salt and black pepper. Toss to coat evenly.
Roast the vegetables in the oven for 15-18 minutes until the edges are slightly charred and tender.
While the vegetables roast, prepare the teriyaki glaze by whisking together the coconut aminos, honey, sesame oil, garlic powder, ground ginger, and arrowroot powder in a small bowl.
Slice the chicken breast into 1-inch cubes. Heat a non-stick skillet over medium-high heat and lightly spray with oil if needed.
Add the chicken to the skillet and sear for 5-6 minutes, turning occasionally, until golden brown and cooked through.
Reduce the heat to low and pour the teriyaki glaze over the chicken. Stir constantly for 1-2 minutes until the sauce thickens and coats the chicken pieces beautifully.
Plate the roasted vegetables and top with the crispy teriyaki chicken. Garnish with sesame seeds before serving.