This is a great recipe for a fast, tasty lunch, especially if you are on the go or want to have something on hand. When the summer rolls around we tend to eat a lot of chicken salad. I like it because I can make a big batch in advance, portion it out and slap a quick lunch together in between getting the kids fed and/or down for a nap. I really liked this one because I love dill and cucumbers. Mixing in the chicken with the sour cream and the mustard brought it all together. One quick suggestion on the red onion is to put the diced onion in a cup of ice cold water for about five minutes. It helps take some of the sharpness out of the onions so you aren't breathing fire hours after having eaten. My biggest beef with red onions is having them linger on your breath and this has always helped limit that.