Preheat your oven to 400 degrees Fahrenheit.

In a small bowl, whisk together all your teriyaki sauce ingredients: low-sodium soy sauce, fresh orange juice, water, honey, minced garlic cloves, minced fresh ginger, chili flakes, lemon juice, and gluten-free flour. Spray a baking dish with non-stick cooking spray and place your skinless salmon fillets in the dish.

Pour your homemade teriyaki sauce over the salmon fillets and bake for about 12–15 minutes until they are cooked through and flake easily with a fork.

Once your salmon is cooked, remove it from the oven and spoon over the thickened sauce from the baking dish.

Garnish with sesame seeds and sliced green onion before serving.