This salad was a staple on Christmas Eve while my sons were growing up. It's very colorful, Chrismassy, refreshing and it serves a lot of people. It can be put together well in advance. In fact, I would recommend making it at least a day or two ahead. Prep time really depends on how cold your refrigerator is, so the timing is flexible. We generally served this on a large red lettuce leaf with a dab of mayonnaise and a mint leaf on top. The recipe came from an old Joys of Jello cookbook.