For most of the world, pending country, any pet can technically be dinner.
I have had Cat, Dog, Horse, Dolphin, Whale, and Rabbit while I was over in Japan, and they all tasted quite good.
hell I even cooked an octopus alive on a grill once while i was over there. seemed kind of malicious, as watched the natives do it, so I did it, but it actually tenderized the meat, so what do I know.
But Rabbits, they are quite delicious. >.> what next on the menu to try... yep, gator. But in terms of pets, than can be. Hel I even had one as a pet when I was younger, loved it.