I like sunflower on salad too. Keep flax on hand, I grind it fresh (heard you get max benefit that way) and add to cereal and such. I use black sesame for sushi rolls and bread. Might be good on salad too never thought of that before. I see chia in the stores, I've been meaning to try them.
At the Mexican import store I buy bags of shelled pumpkin (pepita) for a good price. Good on in salad, cereal bars, every once in a while I make mole with them.
Someone in another forum years ago said she loved to eat peach and apricot kernels.You shell them like a walnut. I have an old apricot jam recipe that calls for putting one kernel in the bottom of each jar to add a subltle almond flavor. I ate one, it was pretty good but a lot of work, so I didn't put them in the jam. Also used in amaretto and amaretti biscotti according to wikipedia. They do have small amounts of cyanide though.
I keep seeds and nuts in the fridge.
I've tried to make alfalfa sprouts from seed before. It was hard to keep them rinsed and drained properly so they wouldn't get slimy. Finally gave up.