I told you that in Sicily last Spring we had Parsley Pesto (with grilled swordfish) and Pistachio Pesto (with grilled pork), but we never saw a Basil Pesto. They do love their Pistachios in Sicily - they use them with everything. We brought a small, overpriced jar of pistachio pesto home, but it's fairly easy to make.
"Pesto" means something that is pestado - pounded or ground up, as in English "pestle and "paste." Walnut-Parsley is a popular combination. Also, fresh mint pesto. The Cuisinart is what made Pesto easy.
More: Move out the way, basil. Cheese + nuts + olive oil + garlic + whatever the hell you want = awesome pesto.
Pesto is for seafood, vegetables, noodles.