Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Toss the broccoli florets, sliced bell pepper, and zucchini with olive oil, sea salt, and black pepper on the prepared baking sheet.
Roast the vegetables for 15-20 minutes until they are tender and show slight charred edges.
While the vegetables roast, season the chicken breast with a small pinch of salt and pepper.
Heat a non-stick skillet over medium-high heat and sear the chicken for 5-6 minutes per side until golden brown and cooked through.
In a small bowl, whisk together the tamari, maple syrup, sesame oil, grated ginger, and minced garlic.
Reduce the skillet heat to low and pour the sauce over the chicken, tossing frequently for 1-2 minutes until the glaze is thick and glossy.
Slice the chicken and serve it over the roasted vegetable medley, garnishing with sesame seeds for added texture.