Tian is a traditional Provençal dish, usually made with seasonal vegetables slow-roasted in the oven. It takes its name from the earthenware dish it is baked in, called a tian in Provence.A classic tian uses vegetables such as courgettes, tomatoes, aubergines and onions, thinly sliced and arranged in layers or stood upright in the dish. They are drizzled with olive oil, seasoned with herbes de Provence (thyme, rosemary, basil) and sometimes topped with cheese or breadcrumbs. The slow bake concentrates the flavours, giving a simple but delicious dish that is typical of Mediterranean cooking.