If you've read about "warm vinaigrette" dressing and wondering how to make them, here's the answer. In no time at all, you get crispy salmon in a heady, sweet-and-briny sauce and next-to-zero carbs. Cornichons, tiny French pickled cucumbers, are available in most supermarkets and fancy food stores.
Years before the low-carb movement, this dish was fashionable among obsessive calorie-counters who frequented fancy French restaurants. It looks and taste great, and the edible green wrapper of lettuce not only seals in the juices but also adds to its healthful presentation.