Parsley Pesto

I made this Parsley Pesto. I really liked the fact that the recipe calls for spinach, because I add spinach to pretty much every pesto that I make for an extra burst of nutrition.  The only change that I made was to add 1/8 tsp red pepper flakes.  I thought this turned out really well, and served it tonight over pasta.  I'm planning on making a potato salad with it tomorrow also.