I got the original recipe from Cooking Club of America. I changed the amounts due to my personal tastes as you may do. It doesn't HAVE to be refrigerated overnight, the only time I do that is just for my convienience. Amounts on salad ingredients may be adjusted or left out according to what you like. This is a great pasta salad and I'm always asked for the recipe when I take it to a potluck. Try it, you won't be sorry!8 (1 1/2-cup) servings.