Pesto is an amazingly versatile sauce to have on hand.  I make lots and make freeze it in small containers, (or even an ice cube tray) for use at a moment's notice. Use pesto on pasta, over grilled chicken or fish, or as a seasoning agent in soups and salad dressings. Pesto has strong flavors, so a little can go a long way.

Makes about 3 cups

Combine all ingredients in a food processor and process on high speed till evenly chopped and mixed.