What do villains eat?
Anything they need in order to survive and contribute to the survival and thriving of their plans!
That being said, many villains have diets we might consider unusual or unique from our point of view or culture. Frankly, they often eat things we would consider absolutely forbidden… but they are things that humans can consume. What would Hannibal Lecter do given opportunity to have whatever delicacies he might want? How many creatures of the dark seek to drink human blood or to feast upon our flesh or souls? And how many invaders from other stars are somehow genetically compatible with us enough that they both can, and do, want us as food?
Is it not said by many peoples of Earth that to gain the strength of an enemy (or sometimes a friend) you might eat his heart? How much more so is that true in a strange, magical or science fiction reality?
Visit this panel/discussion for a number of (delicious?) ideas, and maybe even some recipes!
Note: This panel may not be entirely appropriate to those who do not like the idea of learning about forbidden culinary practices.