I haven't ever really been a pesto person, maybe because no one in my household really cares for it. I now realize what an amazing addition it is to so many dishes. It can make something drab and boring become beautiful and delicious! This pesto is very simple and it can be thrown together in minutes. If you have a lot left over that you don't know what to do with, you can spoon it into an ice cube tray and freeze! Once frozen, store in a ziplock bag and it will last for months in the freezer. Anything easy to freeze makes me happy!
In a food processor, combine the walnuts, basil, parmesan, garlic, salt and pepper. Process until finely chopped. With the machine running, pour 1/4 cup olive oil in a steady stream through the feed tube. Process until smooth. If the pesto looks a little dry, add more olive oil. Taste the pesto and adjust salt and pepper if necessary. Use immediately, or store in an air-tight container in the fridge for up to 2 weeks.