This colorful salad is a bright and flavorful addition to any holiday meal. Wash lettuce and remove any discolored leaves ahead of time. Sara washes and drains the lettuce, then spreads it out on paper towels and gently rolls it up in a plastic bag. It keeps refrigerated for 3 to 4 days and stays nice and crunchy. If you want to make salad ahead of time, prepare vinaigrette up to 4 days in advance and toss with salad just before serving. Prep: 25 minutes.