I have been making my Macaroni Salad like this for years. . The juice from the green olives and pickles really add to the flavor of the salad. Slice the olives and pickles before measuring them. This is really good if you make it the night before you are going to serve it. It gives the different flavors and juices a chance to blend really well. I don't like my pasta salads with a lot of mustard so I use horseradish sauce. You can replace it with more mustard if you want. I use the mustard for color only. Prep time is approximate. Cook time is the refrigeration time. This recipe can easily be doubled.