While teriyaki sauce marinades can be easily bought from grocery stores or markets now-a-days, it's always better to put your own twist to these store-bought conveniences. Here, to use for the salmon filets, I enhanced the sauce:
1 cup teriyaki sauce (any brand will do. I used Kikkoman.)
1 T white sugar
1 inch ginger, peeled slices thinly or grated (I sliced)
1 T garlic, finely chopped
3 stalks green onion, sliced thinly
Mix all of the above and marinate the salmon in it for about 1 hour. Turn the salmon midway to ensure even distribution of flavor. Do not marinade too long as the fish will get too salty. Bake at 400 degrees for about 45 minutes uncovered. If your salmon is thick, ensure that fish is cooked through. Broil on high for 5 minutes for a smokey flavor on top (optional).
Serve with vegetables for a healthy, easy dinner.