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Tomato Tart with Olives and Gruyère
A sheet of frozen puff pastry, thawed and rolled into a slightly larger rectangle, is the crust for this simple but impressive savory tart. We toss the sliced tomatoes and onion with salt and pepper to season the vegetables while also allowing them to release some of their moisture for both better texture and flavor after baking. Using the tines of a fork to poke holes in the rolled-out pastry prevents the center from becoming too puffy, but leave a 1-inch border around the edges so the pastry forms a light, crisp outer crust.
4 to 6
Servings
Tip
Don’t use regular round tomatoes in this recipe. Plum tomatoes, which are relatively firm and dry, work best.
40 minutes
Ingredients
-
1
pound plum tomatoes, cored and cut crosswise into ¼-inch slices
-
½
small red onion, thinly sliced
Directions
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01Heat the oven to 450°F with a rack in the middle position. Line a rimmed baking sheet with kitchen parchment. In a large bowl, toss together the tomatoes, onion and ½ teaspoon each salt and pepper; set aside. With a rolling pin, roll the pastry into a 10-by-14-inch rectangle, then place on the prepared baking sheet. Using a paring knife, score a 1-inch frame around the edge of the pastry, then poke holes in the pastry with a fork, avoiding the border. Spread the mustard on the pastry, avoiding the border, then sprinkle with the cheese.
Reviews
August 12, 2025
Tomato Tart
This was just wonderful. I added a little grated parmesan to the cheese and chopped yellow pepper to the veggies. No words for how perfectly savory it was. Could make it weekly forever.
September 18, 2022
Delicious Tart
This was a lovely, quick dinner! The puff pastry makes it so easy to prep. I picked this for a weeknight dinner since it was so simple but, to my surprise, my boyfriend was also delighted as it’s similar to something his mom used to make- Pissaladière. We’ll definitely make this again.
July 14, 2024
Beautiful and tasty
I had Trader Joe's frozen puff pastry languishing in my freezer and a pound of boring Roma tomatoes from the supermarket and decided to give this recipe a try. So glad I did because it is delicious. I didn't change a thing (used green olives and gruyere) but I did roll the pastry out on the parchment paper that delivered it to my sheet pan. That's my only tip. Will make this one again!
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