Potato-Mushroom Tart

Campbell's Potato-Mushroom Tart Recipe

Thinly sliced potatoes and a mix of flavorful mushrooms conspire to make this delicious, savory tart.  Using a refrigerated pie crust makes this recipe especially easy.

At a glance


30 min.


1 hr. 15 min.



Bake: 30 min.

Cool: 15 min.

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What You'll Need

1/4 cup olive oil
3 tablespoons unsalted butter
1 small onion, thinly sliced (about 1/4 cup)
1 clove garlic, minced
1 pound assorted mushrooms (white, cremini, chanterelle, shiitake and/or morels), sliced
1/4 cup white wine
1 dash each salt & pepper
1/2 teaspoon dried thyme, crushed
1/2 pound Yukon gold potatoes, peeled and thinly sliced (about 3 cups)
1/2 of a 14-ounce package refrigerated pie crust (1 crust), baked according to package directions for a 10-inch tart
3/4 cup heavy cream
1/3 cup milk
5 egg yolks
1/2 cup shredded Gruyère cheese (about 2 ounces)

How to Make It

  • 1

    Heat 2 tablespoons olive oil and the butter in a 10-inch skillet over medium heat. Add the onion and cook for 3 minutes or until it's tender, stirring often. Add the garlic and cook for 1 minute, stirring often.

  • 2

    Reduce the heat to low. Add the mushrooms and wine and cook for 5 minutes or until the mushrooms are tender. Season with salt, pepper and 1/4 teaspoon thyme. Cook for 1 minute, stirring occasionally. Remove the skillet from the heat, cover and set aside.

  • 3

    Layer about two thirds of the potato slices in the bottom of the cooled tart shell, overlapping slightly. Season the potatoes with salt, pepper and the remaining thyme. Spread the mushrooms evenly over the potatoes.

  • 4

    Beat the cream, milk and egg yolks in a medium bowl with a fork or whisk until the mixture is smooth. Pour the egg mixture evenly over the mushrooms.

  • 5

    Layer the remaining potatoes evenly over the mushrooms. Drizzle with the remaining olive oil. Sprinkle the cheese evenly over the potatoes

  • 6

    Bake at 375° F. for 30 minutes or until the filling is set, the potatoes tender and the pastry lightly browned.

  • 7

    Cool the tart for 15 minutes on a wire rack and serve.

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