Sardines

They do not need to be cooked. Eat them right out of the container or put them on a cracker. I eat them all the time.

They are ready to eat. I don't generally get the packed in oil ones, I find them greasy. My faves are the ones in tomato sauce - I eat them on Triscuits. You could drain them and blot them, kinda mash them a little, mix in a few seasonings if that appeals to you (for some reason finely chopped green onion or maybe some hot sauce sounds good to me), and have them on crackers or toast.

I usually buy the tomato sauce ones. About half a can, mushed onto a slice of wholegrain toast is perfect at any time of the day!

Crackers like corn thins or ryvita work well - I keep as standbys in my office a tin of sardines and some rice cakes for emergency lunches.

I found a Chowhound thread about Sardines, http://chowhound.chow.com/topics/364987

A few suggestions there:

Avocado and sardines are a great combo. Put 'em on sliced sourdough or whole wheat with a little mayo and lettuce and savor away.

i like them sauteed with some garlic and chili and mixed into scrambled eggs. also love them with mustard and watercress on crusty bread.

put on rye bread with lettuce and mustard

One of my favorite sandwiches. Rye bread, mayo, sardines, sliced hardcooked eggs, thinly sliced onion, thin slices of tomato, salt and pepper. Heaven.

my personal favorite way to eat them is dump out oil, add small amount hot sauce, then place on no salt added crackers.(the fish already has a ton of salt in it )

I'm not a sardine eater, but my dad loves them, so from watching him I know you can eat them right out of the can! After reading that thread tho, I'm curious to try some!