Made a big side of salmon for a party last night and have about 1 lb. left over, which as I am a single person, could last WAY too long. Questions - can I freeze the leftovers in serving size portions and defrost at a later date? How long would that keep? If not storage in the freezer, how long will this last in the fridge? Aside from combining with some cream cheese and chives for a bagel spread, what other uses can I have to multi-purpose the gravlax? Any advice would be appreciated, thanks in advance!