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Yellow Squash and Mozzarella Quiche with Fresh Thyme

This vibrant yellow squash and mozzarella quiche is a wonderful celebration of seasonal produce and delicate herb notes. The combination of tender sautéed squash and aromatic fresh thyme brings a sophisticated flavour to the rich, creamy custard filling, while the melted mozzarella adds a lovely pull and savoury depth. Encased in a crisp, buttery homemade shortcrust pastry, this dish offers a delightful contrast in textures that makes it a standout choice for any vegetarian spread.

Whether you are planning a weekend brunch, a light summer lunch, or a homemade picnic, this versatile quiche is sure to be a crowd-pleaser. It is particularly delicious when served warm or at room temperature alongside a crisp green salad and some buttered new potatoes. High in protein and packed with fresh vegetables, it is a wholesome yet comforting meal that showcases how simple ingredients can create a truly elegant result.

Continue reading below

Ingredients for Yellow Squash and Mozzarella Quiche with Fresh Thyme

  • 160g unbleached plain flour

  • 1/2 teaspoons salt

  • 110g (1 stick) chilled unsalted butter, cut into 1/2-inch cubes

  • 60ml (or more) ice water

  • 1 tablespoon butter

  • 350g yellow crookneck squash, cut into 1/4-inch-thick rounds

  • 2 teaspoons chopped fresh thyme

  • 6 large eggs

  • 240ml whipping cream

  • 3/4 teaspoons salt

  • 1/4 teaspoons ground black pepper

  • 1/4 teaspoons hot pepper sauce

  • 180ml (packed) coarsely grated mozzarella cheese (about 90g )

How to make Yellow Squash and Mozzarella Quiche with Fresh Thyme

Blend flour and salt in processor. Add butter. Using on/off turns, blend until coarse meal forms. Add 60ml ice water. Using on/off turns, blend until dough comes together in moist clumps, adding more ice water by teaspoonfuls if dough is dry. Gather dough into ball; flatten into disk. Wrap and chill at least 1 hour and up to 1 day.

Preheat oven to 191°C. Roll out dough on floured surface to 14 1/2-inch round. Transfer to 10-inch-diameter tart pan with removable bottom. Fold overhang in; press to form double-thick sides. Push sides up until 1/4 inch higher than top edge of pan. Pierce crust all over with fork. Freeze 10 minutes.

Line dough with foil and dried beans or pie weights. Bake until sides are set, about 25 minutes. Remove foil and beans. Bake until crust is golden, piercing with fork if crust bubbles, about 15 minutes. Transfer crust to rack; cool completely. Reduce oven temperature to 177°C.

Melt butter in heavy medium skillet over medium heat. Add squash and thyme. Sauté until squash is just tender and translucent, about 5 minutes. Cool to room temperature.

Whisk eggs, cream, salt, pepper, and hot sauce in bowl. Arrange squash over bottom of crust. Sprinkle with mozzarella. Place tart pan on oven rack. Pour egg mixture into crust, filling completely (some egg mixture may be left over).

Bake quiche until filling is golden and set in centre, about 35 minutes. Transfer quiche to rack; cool 15 minutes.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 17 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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