I thought I'd just share what I'm doing for lunch often these days :-)
I don't really like canned sardines, but it's really nutritious, cheap and quick to prepare. So here's how I'm doing and enjoying them.
I take 2 cans of sardines packed with spring water. I dump them in a glass container with all the water (no idea if better, but when draining them I notice a lot of oil bubbles in the water, so I'm assuming by not eating the water, I leave out beneficial fats, but I may be wrong). I then add a big splash of cider vinegar and mash everything into a fine paste. It resembles some kind of sardines paté or "rillettes" as we say in French.
That's it, I like the taste as it is and it takes a couple of mins to make and pack for lunch.
It won't win any awards and the taste may be an acquired one, but I like it now and it's another option in the toolbox for a healthy lunch protein :-)