Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Place the broccoli florets and sliced red bell peppers on the baking sheet, drizzle with half of the avocado oil, and season with sea salt and black pepper.
Roast the vegetables for 15 to 20 minutes until they are tender and the edges begin to caramelize.
While the vegetables are roasting, whisk together the tamari, honey, grated ginger, minced garlic, and toasted sesame oil in a small bowl to create the teriyaki glaze.
Slice the chicken breast into bite-sized pieces and heat the remaining avocado oil in a non-stick skillet over medium-high heat.
Sauté the chicken for 6 to 8 minutes until golden brown and cooked through.
Pour the teriyaki sauce into the skillet with the chicken and simmer for 2 to 3 minutes until the sauce thickens into a glossy glaze.
Divide the roasted vegetables and glazed chicken between plates and garnish with sesame seeds before serving.