Iguana-on-a-stick

Iguana-on-a-stick, available as a whole iguana or in the form of Iguana Bits, is an edible food item in the Fallout series eaten to replenish hit points.

Fallout, Fallout 2 and Fallout Tactics
 Iguana-on-a-stick It is sold by Iguana Bob in the Hub Downtown and available in many other places as well. It is possible to feed dogmeat some iguana-on-a-stick to keep him as a companion. You can find out that the iguana is actually human bits bought from Doc Morbid in Junktown.

Fallout 3
Iguana-on-a-stick is commonly found throughout the Capital Wasteland, which is weird because there are no iguanas.