Preheat oven to 400°F and line a baking sheet with parchment paper.
Toss broccoli, sliced bell peppers, and sliced carrots with olive oil, sea salt, and black pepper.
Roast vegetables for 15-20 minutes until tender and slightly charred.
While vegetables roast, whisk together tamari, honey, sesame oil, grated ginger, and minced garlic in a small bowl.
Season chicken breast with a pinch of salt and sear in a non-stick skillet over medium-high heat for 6-7 minutes per side until cooked through.
Lower the heat, pour the tamari mixture over the chicken, and simmer for 2 minutes until the sauce becomes a thick, glossy glaze.
Slice the chicken and serve immediately with the roasted vegetables.