In a small bowl, whisk together the sweet Thai chili sauce, soy sauce, lime juice, minced garlic, and grated ginger until well combined.
Place the salmon fillets in a shallow dish or a resealable plastic bag and pour the marinade over them. Ensure that the salmon is evenly coated. Cover the dish or seal the bag and refrigerate for at least 30 minutes, or up to 2 hours for more flavor.
Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
Remove the salmon from the marinade and place it skin-side down on the prepared baking sheet. Drizzle with sesame oil and season with salt and pepper.
Bake in the preheated oven for 12-15 minutes, or until the salmon is cooked through and flakes easily with a fork.
While the salmon is baking, you can optionally simmer the leftover marinade in a small saucepan over medium heat for about 5 minutes until thickened. This will be a delicious glaze to drizzle on top.
Once the salmon is done, remove it from the oven and drizzle any thickened marinade over the fillets.
Garnish with sliced green onions and sesame seeds before serving.
Notes
For extra flavor, marinate the salmon for up to 2 hours.