When I was a kid I spent a couple of summers in New Mexico at a camp called Prarie Trek Expedition. We traveled all over the southwest, and prided ourselves on “roughing it.” When we were at base camp we cooked our breakfast over an open fire, and each kid had a little cast-iron skillet to call his own. Mostly we cooked eggs, but every once in a while we were given slices of spam to fry up, and a pineapple ring we were supposed to eat with it. This was known (somewhat ironically) as “Hawaiian Delight,” and was roundly despised by myself and my fellow campers. As Cecil mentioned, it’s better than you might expect, but not much! 
The column is here.
The column (including two of Slug Signorino’s illustrations) can also be found on pages 229-235 of Cecil Adams’ book “Triumph of the Straight Dope”.