Rustic tomato and zucchini tian with herbes de Provence

A tomato and zucchini tian is one of those dishes that makes a generous meal from a short list of ingredients. Thinly sliced vegetables are arranged in a baking dish, seasoned with garlic and herbs, then roasted until the edges caramelise and the juices mingle at the bottom. It is colourful, fragrant and forgiving enough for a relaxed family dinner.

The word tian refers both to the Provençal-style preparation and the shallow earthenware dish traditionally used for it. You do not need special pottery to make one. A ceramic baking dish, cast-iron skillet or glass casserole will work, provided the vegetables fit snugly enough to soften together rather than roast as separate slices.

This version uses Herbes de Provence for a savoury, floral lift. The blend often includes thyme, rosemary, oregano, marjoram and savoury, with some commercial versions adding lavender. Fresh garlic, fruity olive oil and a little parmesan give the vegetables enough richness to stand alone, while a crisp topping adds welcome texture.

For Australian cooks, it is a particularly useful recipe during the warmer months, when zucchini and tomatoes fill farmers’ market stalls in Brisbane, Sydney and Melbourne. Serve it for a Sunday lunch, take it to a summer barbecue, or bake it ahead for a weeknight meal when the kitchen needs something simple but deeply flavoured.

Choosing vegetables with good flavour

Choose tomatoes that are ripe but firm. They should yield slightly when pressed without feeling soft or watery. Roma tomatoes, egg tomatoes and medium vine-ripened varieties are excellent because their flesh holds its shape and contains less liquid. Smaller heirloom tomatoes can add colour, though their uneven sizes may make the arrangement less uniform.

Select zucchini with smooth, glossy skin and a firm texture. Green zucchini is classic, but yellow zucchini or a pale Lebanese zucchini can be included for contrast. The important detail is matching the diameter of the slices as closely as possible. Similar-sized rounds cook at the same rate and create neat, overlapping rows.

In Australia, tomatoes are especially appealing through summer and early autumn, while zucchini can be plentiful for longer depending on the region. At a local growers’ market, look for vegetables that feel heavy for their size and ask when they were picked. Produce that has spent less time in cold storage usually brings more aroma to a dish this spare.

Ingredients and useful substitutions

For four to six servings, gather 4 medium tomatoes, 3 medium zucchini, 1 small brown onion, 3 garlic cloves, 3 tablespoons extra-virgin olive oil, 2 teaspoons Herbes de Provence, ½ teaspoon sea salt and several grinds of black pepper. You will also need 40g finely grated parmesan and 3 tablespoons of panko breadcrumbs or coarse fresh breadcrumbs.

A small amount of onion gives the base sweetness without competing with the vegetables. Thinly slice it into half-moons, or use a red onion for a more colourful result. If you prefer a dairy-free tian, replace the parmesan with extra breadcrumbs mixed with a tablespoon of olive oil, or use a savoury plant-based cheese.

Fresh herbs can supplement a dried blend. A little thyme, chopped rosemary or basil scattered over the finished dish works beautifully. Avoid adding large amounts of fresh basil before baking, as its delicate leaves can blacken and lose their perfume.

Preparing the slices and baking dish

Heat the oven to 200°C conventional or 180°C fan-forced. Lightly oil a shallow baking dish measuring approximately 25cm by 18cm. Rub the base with one of the garlic cloves, then scatter the sliced onion and half of the remaining garlic across it. This creates a sweet, aromatic layer beneath the vegetable rounds.

Slice the tomatoes and zucchini into pieces about 5mm thick. A mandoline makes the work quick, but a sharp chef’s knife gives you better control and avoids paper-thin slices that collapse. If the tomatoes are particularly juicy, place them on a tray lined with a clean tea towel for 10 minutes. There is no need to salt them heavily; simply allowing excess moisture to drain prevents a watery bake.

Arrange the slices in alternating rows, standing them slightly upright and overlapping them like roof tiles. You can create straight lines, concentric circles or a loose spiral. Tuck any smaller pieces into gaps. The vegetables will shrink during cooking, so a slightly crowded arrangement is desirable at the beginning.

Building layers of Provençal flavour

Mix the olive oil with the crushed garlic, Herbes de Provence, salt and pepper. Drizzle this mixture over the arranged vegetables, aiming to distribute it across the exposed surfaces. Follow with the parmesan and breadcrumbs, which will form a golden, savoury crust as the juices bubble around the slices.

Herbes de Provence can vary significantly between brands. If your blend contains lavender, use a restrained amount of additional seasoning, since too much lavender can make the dish taste perfumed. A pinch of chilli flakes is welcome for heat, while a little lemon zest added after baking can sharpen the rich, sweet flavours.

For a more substantial meal, place thin slices of fresh mozzarella between some of the vegetables, or add a few spoonfuls of cooked white beans beneath the rows. These additions change the texture, but the vegetables should remain the focus. The tian is at its best when the tomato and zucchini are allowed to taste like themselves.

Roasting until tender and golden

Bake uncovered for 45 to 55 minutes, rotating the dish once halfway through. The tomatoes should slump slightly, the zucchini should be tender when pierced with a knife, and the top should show browned patches. If the breadcrumbs colour too quickly, loosely cover the dish with foil for the remaining cooking time.

A very wet batch may need another 10 minutes in the oven. Do not raise the temperature to force the process, since the topping may burn before the vegetables soften. If the dish seems dry before baking, add two tablespoons of water or vegetable stock around the edges. Usually, ripe tomatoes provide all the moisture required.

Allow the tian to rest for 10 to 15 minutes before serving. This pause lets the juices settle and makes the portions easier to lift. It can be eaten warm, hot or at room temperature, which makes it practical for entertaining and for the Australian habit of serving several dishes buffet-style outdoors.

Serving ideas for lunch or dinner

Serve generous spoonfuls with crusty sourdough, grilled chicken or pan-fried fish. A green salad dressed with lemon and mustard provides freshness, while a dollop of plain yoghurt balances the sweet roasted vegetables. For a vegetarian table, add lentils, chickpeas or a soft white bean salad and let the tian act as the centrepiece.

It also pairs naturally with grains. A nutty side such as this warm farro salad brings chew and contrast, particularly when the tian is served for a generous lunch. In cooler parts of Victoria or Tasmania, the combination makes a satisfying early-autumn meal; in Queensland, it suits a lighter evening supper.

For wine, choose a dry rosé, a crisp sauvignon blanc or a light-bodied red served slightly cool. A French Côtes de Provence rosé echoes the herbs, while an Australian vermentino or pinot gris can cut through the olive oil and parmesan. Sparkling water with lemon and mint is a refreshing alcohol-free pairing.

Making the dish ahead and using leftovers

You can assemble the tian several hours before baking. Cover it and refrigerate, then bring it out while the oven heats. Add the breadcrumb and parmesan topping just before baking if you want the crispest surface. A cold dish may need an extra five to ten minutes, so judge it by tenderness rather than the clock.

Leftovers keep in a sealed container in the refrigerator for up to three days. Reheat them in a 180°C oven until hot, rather than using the microwave, which can make the zucchini limp. Chopped leftovers can be folded through pasta, spooned over toast or added to an omelette with a little feta.

The same relaxed spirit works with other seasonal produce. Add thinly sliced capsicum, eggplant or potatoes, adjusting the cooking time for firmer vegetables. In winter, a few strips of roasted pumpkin can replace some of the zucchini. For a more elaborate vegetable spread, serve it alongside a steamed artichoke with garlic butter and plenty of bread for dipping.

A tian rewards attention to small details: ripe produce, even slices, a moderate oven and enough resting time. Those choices allow a handful of everyday ingredients to develop the deep, sunny flavour associated with Provence while remaining thoroughly at home on an Australian table. More recipes and kitchen stories are available at Bia Rich and Sweet, where seasonal cooking meets practical restaurant wisdom.