Pesto beyond the normal basil and pine nuts (which I do love, but it can get quite boring over and over). Wall Street Journal has great article and recipes on different versions of pesto, including:
Walnuts + Grapeseed Oil
Pistachio + Breadcrumbs + Mint
Rapini + Parmesan + Porcini
Pumpkin Seeds + Basil + Parmesan
Pecans + Parsley + Dates
Arugula + Basil + Almonds
My absolute favorite is Roasted Brussels Sprouts with Pistachio-Cranberry Pesto. It’s definitely a must-try!!!