01 - Preheat oven to 400°F. Line a baking sheet with parchment paper or lightly grease with cooking spray.
02 - In a small saucepan over medium heat, combine soy sauce, honey, rice vinegar, mirin, ginger, garlic, and sesame oil. Bring mixture to a gentle simmer, stirring occasionally to dissolve honey.
03 - Stir cornstarch slurry into simmering sauce. Cook for 1-2 minutes, stirring constantly until glaze thickens and coats the back of a spoon. Remove from heat.
04 - Place salmon fillets on prepared baking sheet, skin-side down. Brush each fillet generously with half of the prepared teriyaki glaze, ensuring even coverage.
05 - Bake for 12-15 minutes until salmon flakes easily when tested with a fork and internal temperature reaches 145°F. The flesh should be opaque and just cooked through.
06 - Remove baking sheet from oven. Brush salmon with remaining teriyaki glaze, creating a glossy finish on each fillet.
07 - Sprinkle sliced green onions and toasted sesame seeds over glazed salmon. Serve immediately with lemon wedges on the side.