01 - Preheat the oven to 400°F. Line a baking tray with parchment paper or lightly grease it.
02 - Pat salmon fillets dry and arrange them on the prepared tray. Brush the fillets with olive oil and season with salt and black pepper.
03 - In a small saucepan, combine orange juice, honey or maple syrup, soy sauce or tamari, grated ginger, orange zest, and minced garlic. Bring to a simmer over medium heat.
04 - Allow the glaze to simmer for 3 to 4 minutes, stirring occasionally. If a thicker consistency is desired, incorporate the cornstarch slurry and cook for an additional 1 to 2 minutes until slightly thickened. Remove from heat.
05 - Spoon half of the glaze evenly over the salmon fillets. Bake in the preheated oven for 12 to 15 minutes, or until the salmon is cooked through and flakes easily with a fork (internal temperature 145°F).
06 - Drizzle the remaining glaze over the baked salmon. Garnish with sliced green onions, toasted sesame seeds, and optional orange slices. Serve immediately.