I had reason to look up Hippie Food: How Back-to-the-Landers, Longhairs, and Revolutionaries Changed the Way We Eat, a book I loved. If you're "of that era" I heartily recommend it. https://amzn.to/4doBYJ8
I still have my mom's Moosewood cookbooks and The Vegetarian Epicure -- very much in that tradition and of that time.
One of my all-time favorite recipes is Moosewood's gingerbread. It's dark, rich, and spicy. (I forget which book it's in, but this is it.)