Mushroom & Spinach Quiche with Whole-Grain Crust

A crisp whole-grain crust filled with sautéed mushrooms, wilted spinach and a creamy, herby egg filling — a lovely easy dinner or weekend brunch.

Mushroom & Spinach Quiche with Whole-Grain Crust
20Prep min
40Cook min
60Total min
Serves 8Serves
FrenchCuisine
This mushroom and spinach quiche pairs a crisp, nutty whole-grain crust with a creamy, herby filling of sautéed mushrooms and wilted spinach. It makes an easy weeknight dinner feel like a proper brunch.

The filling is built on eggs and milk (or a dairy-free alternative), seasoned with garlic, thyme and a touch of nutmeg. It holds its shape when sliced and works just as well warm or at room temperature.

Ingredients

  • For the crust:
  • 200 g whole-grain flour
  • 100 g cold butter or coconut oil, cubed
  • 3–4 tablespoons ice-cold water
  • 1/2 teaspoon fine salt
  • For the filling:
  • 1 tablespoon olive oil
  • 250 g mushrooms, sliced
  • 150 g spinach, roughly chopped
  • 2 garlic cloves, minced
  • 1 teaspoon fresh thyme leaves
  • 5 large eggs
  • 200 ml milk (or unsweetened plant milk)
  • 1/4 teaspoon freshly grated nutmeg
  • Salt and black pepper, to taste

Instructions

  1. Heat the oven to 190°C (375°F).
  2. Make the crust: rub the flour and butter together until crumbly, then add the water a tablespoon at a time until it just comes together.
  3. Press the dough into a 25 cm tart or pie tin, prick the base with a fork and chill for 15 minutes.
  4. Line the crust with baking paper and weights, then blind-bake for 12 minutes. Remove the paper and weights.
  5. Meanwhile, heat the oil in a pan and cook the mushrooms until golden, about 6–8 minutes.
  6. Add the garlic, thyme and spinach and cook until the spinach has just wilted. Generously season and set aside.
  7. In a bowl, whisk the eggs, milk, nutmeg and some salt and pepper.
  8. Spread the mushroom and spinach mixture over the baked crust, then pour in the egg mixture.
  9. Bake for 30–35 minutes until the centre is just set and the top is golden.
  10. Rest for 10 minutes before slicing.

Cook’s tips

  • Blind-baking the crust keeps it crisp, so don't skip it.
  • Let the quiche rest before slicing — it sets as it cools.
  • Add a handful of grated cheese to the filling for extra richness if you like.

Substitutions

  • Swap mushrooms for leeks or roasted courgette.
  • Use a shop-bought pastry crust to save time.
  • For dairy-free, use coconut oil and unsweetened plant milk.

Storage & reheating

Keep covered in the fridge for up to 3 days. Serve chilled or warm.

FAQ

Can I make this ahead of time?

Yes — bake it, cool completely, then refrigerate. Reheat gently or serve at room temperature.

Do I need to blind-bake the crust?

Blind-baking keeps the base crisp; without it the bottom can go soggy.

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