A great spiralizer tool that I like is the Veggetti Spiral Vegetable Slicer. If you are freezing or planning on serving the pesto at another time, process all pesto ingredients but the cheese.and put in an air-tight container. When ready to serve, put all ingredients in a food processer again, adding the cheese and a ½ to 1 tablespoon of olive oil to help moisten the pesto sauce.