While I was shopping for groceries today I had what I thought was an interesting snack idea (hell, maybe it was mentioned here last year).
Behold, the frozen shrimp ring.
Once this thing thaws out it will be 50g or more of ready to east protein that will happily sit in your fridge for a day after thawing.
Frozen so it will last forever, precooked so it is ready to eat as soon as thawed, and as a low fat protein source you can snack on it all day long during any dietary phase.
If they go on sale after Xmas, I'm stocking up!
I also found cheap canned tuna with a pop-top today... gotta love the convenience of that. Not exactly a snack item though.