Pat salmon dry and place in a bowl with soy sauce, garlic and ginger. Refrigerate and let marinade for at least 15 minutes.
Place the salmon on a foil lined baking sheet. Place in a cold oven. Turn oven on to 400 degrees and let cook for 20 minutes. Check to make sure salmon is done by flaking with a fork. If not done, let cook 3 minutes more - do NOT overcook!
While salmon is cooking, mix together sauce ingredients if you chose to use the sauce.
Serve salmon over rice and drizzle it with a little sauce. Serve immediately..