How would I (or any student or graduate researcher) explore vegetarianism and veganism (?) in Tudor England?
Many issues could be explored:
agricultural challenges and prosperity, the rise of meat eating, ethical and extra-ethical challenges to prevailing food mores, philosophy, actual practice, theatrical notes on vegetarians and vegetarian practices and values and beliefs, ritual notes on the topic, religion and vegetarian practices, etc.
I'm hoping to find an ongoing discussion of this topic, not a cut and dried answer.
Several sources could be Bloodless Revolution and Colin Spencer's books.
I don't know that Professor Rynn Berry, a vegetarian historian and literary specialist at the New School in Brooklyn (I think in comparative literature), has written on this topic; his interests seem to have shifted towards comparing modern vegetarians with ancient vegetarian practices in the 'classical periods' of Greece and Rome.