You haven't had an iceberg salad until you've had it frozen. Iceberg lettuce is full of water, so it becomes especially crispy when it's frozen. That's why celebrity chef Alex Guarnaschelli, judge of Food Network's Chopped and author of Old-School Comfort Food, insists that you try this recipe. Just make sure you've got 4 to 6 hours to let your lettuce sit in the freezer. As long as you do it in advance, you'll be able to prepare this salad in just a few minutes.