French tomato-mustard tart

Summer is almost over, which means tomato season is drawing to a close. But it’s not over yet! And I have just the recipe you need to enjoy this year’s last fragrant, juicy tomatoes – a French one that will take you straight to the beautiful city of Dijon. Enter the tarte à la tomate, or tomato tart. This warm, pizza-like savory tart offers a crunchy, flaky crust with a spicy kick from everyone’s favorite Dijon mustard and the earthy, green notes of herbes de Provence. It’s super easy to make too, especially if you use a ready-made crust.

Dijon Invader art
The city of Dijon takes its mustard very seriously. In 2019, French street artist Invader paid homage to both city and condiment with a series of mustard-themed space invader mosaics (photo credit: @chesterlight75).

But you can also make your own crust, or use a pizza crust. Feel free to make your tart larger than the one I describe in this recipe – just add more mustard, tomato and herbs accordingly.

If you don’t happen to have herbes de Provence, you can make your own blend using equal amounts of the herbs often used in it: savory, marjoram, rosemary, thyme and oregano. Herbes de Provence blends vary though, so you’ll sometimes see other herbs such as basil and lavender included – just use the ones you like. Another option would be an Italian herb blend.

French tomato-mustard tart

  • 1 premade vegan flaky pastry crust, 11 in. (28 cm.) in diameter
  • 2 to 3 tablespoons Dijon mustard
  • 2 or 3 medium vine-ripened tomatoes
  • 1 tablespoon herbes de Provence or equivalent herb blend
  • 1 tablespoon olive oil
  • pinch or two salt
  • freshly ground black pepper

Preheat your oven to 425°F (218°C). Unroll the pastry dough and place it on a baking sheet. Poke it with a fork. When your oven has reached the target heat, bake the pastry for 4 minutes.

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Spread the Dijon mustard on the pre-baked pastry. What you see in the photo above is a fairly light layer of mustard, about 2½ tablespoons on a pastry measuring 11 in. (28 cm) in diameter. If you love mustard, feel free to use more.

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Slice your tomatoes – aim for ¼ inch (3 mm) thick slices. Start by slicing up just two tomatoes as you might not need more than that, depending on the thickness of your slices. Cut out and discard the tough white core.

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Arrange the tomato slices on top of your pastry, overlapping slightly.

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Sprinkle the top evenly with your herbes de Provence or equivalent herb blend.

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Then sprinkle a small pinch or two of salt over the top.

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Finally, drizzle a tablespoon of olive oil evenly over the tart.

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Place the tart in the oven and bake for 15 to 20 minutes. Check on it midway – if the edges seem to get too brown too quickly, you can cover them with foil partway through the baking.

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Slice up your tart pizza-style and grind some black pepper over the top if you like.

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And enjoy! This tart is excellent paired with a nice green salad.

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