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On Monday, for the first time ever, Windsor Castle will host a vegan royal banquet. Take a moment to let that sink in. Windsor Castle has existed for 900 years, and it's just now getting around to throwing a vegan shindig. Oh, well. Better late than never.

Do we have leading U.K. climate-change expert Lord Stern to thank for this momentous occasion? Perhaps indirectly, but the true pioneer here is none other than Prince Philip (for you folks in the most far-flung colonies, he's the guy played by James Cromwell in The Queen).

Prince Philip's Alliance of Religions and Conservation is hosting a three-day interfaith conference at Windsor called "Many Heavens, One Earth: Faith Commitments for a Living Planet," which will be attended by leaders from the Bahai, Buddhist, Christian, Daoist, Hindu, Jewish, Muslim, Shinto, and Sikh faiths. U.N. Secretary-General Ban Ki-moon will also attend. Because they'll be talking about the ways in which religious communities can foster environmental protection, it only makes sense that they would dine on the most environmentally friendly (i.e., vegan) foods. Still, it's not every day that environmentalists actually put their money ethics where their mouths are, so this is a pretty big deal. Are you listening, Al Gore?

All the food at the three-day conference will be vegetarian, and most of it will be organic and locally grown. In case you aren't already jealous enough, here's what's on the vegan lunch menu at Windsor Castle: roasted pear salad with cobnuts and chicory, portobello mushrooms stuffed with artichoke and herbs, pearl barley risotto, and organic wine.

Yum—being a royal environmentalist tastes pretty good!

Posted by Alisa Mullins