Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Dice the chicken breast into 1-inch cubes and chop the broccoli, bell pepper, and carrots into uniform, bite-sized pieces.
In a small mixing bowl, whisk together the tamari, honey, sesame oil, freshly grated ginger, and minced garlic to create the teriyaki glaze.
Place the chopped vegetables on one half of the baking sheet, drizzle with olive oil, and season with sea salt and black pepper.
Arrange the chicken cubes on the other half of the sheet and pour half of the prepared teriyaki glaze over the chicken, tossing well to ensure every piece is coated.
Roast in the oven for 15 to 18 minutes, or until the chicken is cooked through and the vegetables are tender with slightly charred edges.
Remove from the oven, drizzle the remaining glaze over the entire sheet, and garnish with sesame seeds before serving.