Provençal Spinach Pie

While the official leafy green vegetable of Provence is Swiss chard, I’ve substituted spinach here for a variety of reasons. First, chard is not a vegetable you can get everywhere, and in the United States we never get the young, tender leaves with entirely undeveloped stems that are required for this pie. On the other hand, baby spinach is only as far away as the nearest supermarket. All sorts of elaborate versions of this pie exist; I gave one of those in a previous book. This time, I’ve