Zucchini and Tomato Tian with Caramelized Onions—Tian de Courgettes aux Tomates
WHY THIS RECIPE WORKS
Hailing from Provence and named for the region's popular terra-cotta dishes, tian is a combination of summer vegetables perfumed with olive oil and thyme and crusted with Gruyère cheese. The trick to a great tian is figuring out how to ensu...