Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Slice the bell pepper into strips and the carrots into thin rounds.
Toss the broccoli, bell peppers, and carrots on the baking sheet with olive oil, sea salt, and black pepper.
Roast the vegetables for 18-20 minutes, tossing halfway through, until they are tender and slightly charred.
While the vegetables roast, whisk together the tamari, honey, grated ginger, minced garlic, and sesame oil in a small bowl.
Season the chicken breast lightly with salt and sear in a non-stick skillet over medium-high heat for 5-7 minutes per side until fully cooked.
Reduce the skillet heat to low and pour the tamari mixture over the chicken, flipping the meat to coat until the sauce thickens into a glossy glaze.
Slice the chicken into strips and serve alongside the roasted vegetables, garnishing the entire dish with toasted sesame seeds.