Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Place the broccoli florets, sliced bell peppers, and sugar snap peas on the baking sheet, then toss with avocado oil, sea salt, and black pepper.
Roast the vegetables for 15 to 18 minutes until they are tender-crisp and show slight charred edges.
While the vegetables roast, whisk together the tamari, honey, grated fresh ginger, minced garlic, and toasted sesame oil in a small bowl.
Season the chicken breast with a pinch of salt and pepper, then sear in a hot skillet over medium-high heat for 6 to 7 minutes per side until fully cooked.
Reduce the skillet heat to low and pour the tamari mixture over the chicken, simmering for 2 minutes until the sauce becomes a thick, glossy glaze.
Slice the chicken and serve it immediately over the roasted vegetable medley, garnishing with sesame seeds for a final crunch.