Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Place the broccoli florets, sliced carrots, and bell peppers on the sheet, tossing them with olive oil, sea salt, and black pepper.
Roast the vegetables for 15-18 minutes until they are tender and slightly charred around the edges.
While the vegetables roast, whisk together the tamari, honey, grated ginger, minced garlic, and toasted sesame oil in a small bowl.
Heat a non-stick skillet over medium-high heat and cook the diced chicken breast until golden brown and cooked through, about 6-8 minutes.
Pour the sauce into the skillet with the chicken, simmering for 2 minutes until the glaze thickens and coats the meat beautifully.
Remove the vegetables from the oven and toss them into the skillet with the glazed chicken, then garnish with sesame seeds before serving.