I think there's a strong ethical case for vegetarianism regardless of your religious views, or lack of them.

It avoids the taking of life on an enormous scale, it avoids the hideousness of intensive farming methods and the horrors of the slaughterhouse, it is dramatically less extravagant with limited resources such as land and water and, when pursued with a modicum of attention to nutrition, can be healthier than a non-vegetarian diet, leading to less human suffering too.

And despite Richard's remark in the interview, veggie food can be absolutely delightful - though I do agree with him that a horrible number of chefs haven't cottoned on to this yet!

Christianity gives meat-eaters some wiggle-room, of course, by claiming that man has dominion over the rest of the animal kingdom. Not one of Christianity's finest pronouncements. But there's no obvious reason why it should outweigh the ethical considerations I've suggested above. The case for vegetarianism is strong on its own merits - no need to bring religion into it either way.