If your great-great-grandmother was French or British, she would have known how to braise lettuce. Although braised lettuce was once a rather common dish, it’s rarely seen in the twenty-first century. To me, the concept still has great appeal, but it’s best when the lettuce is cooked just until tender. Add sweet peas if you are making this in the spring or summer; otherwise, skip them and just add the herbs. Any kind of sturdy head will work for this dish: Little Gem or romaine lettuce is a