Bacon in a salad doesn't necessarily scream
"healthy!" but because the meat is used in
moderation, this dish is still a winner. Just two
slices (for four servings) impart a smoky flavor
into the vinaigrette that coats the greens.
It's fun to use pistachios for some of these and pecans for others, but of course you can stick with one or the other. It's best to bake them on a dry day; if it's even slightly humid, the meringues may take longer to crisp in the oven. The meringues can be made up to five days ahead and stored in a cool, dry place.