Answer:
There is no and will never be any such thing as a vegetarian zombie, a regular zombie maybe.
Step-by-step explanation:
In the future who knows if zombies will be real or not but if they are real they are not vegans and vegetarians because zombies eat meat. Just because they eat meat that doesn't mean that they eat brains, zombies eat or bite anything that is a human or animal which in effect infects the wounded organism and the virus spreads causing them to turn into a zombie. I hope this helps. : )