This was created when I was making potato salad and didn't have the ingredients I normally added. I like to have color in my potato salad and always added a few radishes to add some red in the mix. I was out of radishes so I added what I had - tomatoes. I received rave reviews for the salad that day and also the next time when I included the missing radishes in addition to the tomatoes. I hope you enjoy this recipe as much as my family and all our friends do.