Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper for easy cleanup.
In a bowl, mix together the teriyaki sauce, sesame oil, honey, minced garlic, and grated ginger. This will be your marinade.
Place the chicken thighs in a large zip-top bag or shallow dish and pour half of the marinade over them. Seal the bag or cover the dish, ensuring the chicken is well coated. Let it marinate for at least 15 minutes (or up to overnight in the fridge for more flavor).
While the chicken is marinating, prepare the vegetables. In a bowl, combine the broccoli, bell pepper, sugar snap peas, and carrots. Drizzle with a little olive oil, season with salt and pepper, and toss to coat.
After marinating, remove the chicken from the bag and place it on one side of the prepared baking sheet. Scatter the vegetables on the other side of the sheet.
Drizzle the remaining marinade over the vegetables and chicken, ensuring even coverage.
Roast in the preheated oven for 25-30 minutes, or until the chicken is cooked through (internal temperature should reach 165°F/75°C) and the vegetables are tender.
Once done, remove the sheet pan from the oven. Allow it to rest for a few minutes.
To serve, sprinkle sesame seeds and chopped green onions over the chicken and vegetables for a fresh touch.
Notes
Marinate the chicken overnight for enhanced flavor.