Preheat your oven to 400°F (200°C). Line a sheet pan with parchment paper for easy cleanup.
In a small saucepan, combine soy sauce, honey, rice vinegar, sesame oil, grated ginger, and minced garlic. Heat over medium heat for about 5 minutes, stirring frequently, until the sauce thickens slightly. Remove from heat and set aside.
In a large bowl, toss the broccoli florets, sliced bell pepper, and carrot with olive oil. Season with salt and pepper to taste.
Arrange the seasoned vegetables on one side of the prepared sheet pan. Place the salmon fillets on the other side, skin-side down.
Brush the teriyaki sauce over the salmon fillets generously, reserving some of the sauce for later.
Place the sheet pan in the oven and bake for 15-20 minutes, or until the salmon is cooked through (internal temperature should reach 145°F or 63°C) and the vegetables are tender, but still crisp.
Once done, remove the pan from the oven, and brush the salmon with the remaining teriyaki sauce.
Transfer the salmon and veggies to plates, garnishing with sesame seeds and chopped green onions. Drizzle with additional teriyaki sauce if desired.
Notes
For a spicier kick, add red pepper flakes to the teriyaki sauce.