I have been plagued by this question- would Sailor Moon be a vegan? I feel like she would. So far I’ve only seen her eat mochi and toast, and that is in fact vegan. Actually, that’s not true. She is always eating generic bento boxes, which probably has some meats or fish packed in there. But I blame Usagi’s Mom, she is the one making the meals. I just picture Usagi sitting in her room eating lots of mochi and Earth Balance Mac and Cheese.
Realistically Sailor Mars would be the vegan since she is a shrine maiden. Shintoism has deep respect for animals, so Rei probably does as well (and her favorite food is vegetarian pizza, whatever that means). Or maybe Sailor Jupitar would be vegan? She is such a good cook that she looks for a challenge by cooking vegan food. She would save so much money! Although Sailor Neptune could be vegan since she is so smart.