Whenever I see pesto on a menu, I am all over it. I love it! Pesto is typically made with fresh basil, garlic, pine nuts, and Parmesan cheese. Lately though, I have taken to experimenting with different greens and nuts. This walnut arugula pesto is the best one I have made so far! Arugula is probably my favorite green, so I don’t know why it took me so long to make pesto with it.