Pesto sauce is origin of Italy. It is prepared with basil, garlic, pine nuts, Olive oil and Parmesan cheese. I have replaced pine nuts with almonds. I have also tried with walnuts. Creamy green pesto gives a nice texture and taste to the recipe. Traditionally the pesto is prepared with mortar and pestle. Basil pesto pasta is a simple, quick and healthy pasta. Please check below for step by step instructions and pictures for preparing Basil Pesto Pasta.