This fresh sauce is wonderful on just about anything. The sharpness is a great counterpoint to rich beef. We also use it on chicken or vegetables. It is best when freshly made, but it can sit in the refrigerator for a few days. Be sure to bring it to cool room temperature before using. Be creative and substitute any non-bitter green for some or all of the parsley. I make this easy often when we are grilling dinner and spoon some on top of my beef, potatoes and vegetables. I have also used leftover chimichurri to make a nice rice or grain salad. Simply stir leftover diced grilled vegetables and chimuchurri sauce into cooked grains or rice that has cooled slightly. Yum!