Golden Butternut & Spinach Rosti Quiche with Feta, Cranberry, Walnuts & Sage Brown Butter

Butternut Rosti Quiche is a golden, savory, and beautifully layered dish made with shredded butternut squash, spinach, eggs, feta, cranberries, walnuts, and fragrant sage brown butter. Butternut Rosti Quiche is perfect for brunch, lunch, holiday gatherings, or a cozy vegetarian dinner when you want something elegant but comforting.

The rosti-style base gives the dish a crisp edge and naturally sweet squash flavor, while the creamy egg filling keeps the center soft. Feta adds salty richness, cranberries bring sweetness, walnuts add crunch, and sage brown butter gives the finished quiche a warm, nutty aroma.

Prep Time: 30 minutes

Cook Time: 55 minutes
Total Time: About 1 hour 25 minutes
Servings: 8

Ingredients

For the Butternut Rosti Crust

• 4 cups peeled and coarsely grated butternut squash
• 1 large egg
• 1/3 cup grated Parmesan cheese
• 2 tablespoons all-purpose flour
• 1 tablespoon olive oil
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/2 teaspoon dried thyme

Ingredients For the Spinach Feta Filling

• 1 tablespoon olive oil
• 1 small shallot, finely chopped
• 2 garlic cloves, minced
• 5 ounces fresh spinach
• 5 large eggs
• 3/4 cup whole milk
• 1/2 cup heavy cream
• 1 cup crumbled feta cheese
• 1/4 teaspoon ground nutmeg
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper

For the Cranberry Walnut Topping

• 1/3 cup dried cranberries
• 1/2 cup chopped walnuts
• 2 tablespoons crumbled feta
• 1 tablespoon chopped fresh parsley

For the Sage Brown Butter

• 4 tablespoons unsalted butter
• 6 fresh sage leaves
• 1 teaspoon lemon juice

Why You’ll Love This Recipe

Butternut Rosti Quiche combines the comfort of quiche with a crisp vegetable-based crust, making every slice feel more special than a standard pastry version. The squash adds natural sweetness and a beautiful golden color.

Another reason to love Butternut Rosti Quiche is the balance of flavors. Creamy eggs and feta are paired with earthy spinach, tart cranberries, toasted walnuts, and aromatic sage.

It is also a useful make-ahead recipe because the crust and spinach mixture can be prepared in advance.

How to Make Butternut Rosti Quiche

Step 1: Preheat the Oven

Preheat the oven to 400°F or 200°C. Lightly grease a 9-inch pie dish or tart pan.

Step 2: Prepare the Butternut Squash

Grate the peeled squash using the large holes of a box grater or food processor. Place it in a clean kitchen towel and squeeze firmly to remove as much moisture as possible.

Removing excess liquid is important because it helps Butternut Rosti Quiche develop a crisp, firm crust instead of becoming watery.

Step 3: Mix the Rosti Crust

Place the squeezed squash in a bowl. Add the egg, Parmesan, flour, olive oil, salt, black pepper, and thyme. Mix until evenly combined.

Step 4: Press Into the Pan

Transfer the mixture to the prepared pan. Press it firmly across the bottom and up the sides to create an even crust.

Step 5: Bake the Crust

Bake for 20 to 25 minutes, or until the edges are golden and the base feels set. Remove from the oven and reduce the temperature to 375°F or 190°C.

Step 6: Cook the Spinach

Heat olive oil in a skillet over medium heat. Add the shallot and cook for 2 to 3 minutes. Add garlic and cook for 30 seconds, then add spinach and cook until wilted. Drain away any excess moisture.

Step 7: Make the Egg Filling

In a large bowl, whisk together eggs, milk, heavy cream, nutmeg, salt, and black pepper. Stir in the cooked spinach and feta.

Step 8: Fill the Crust

Pour the egg mixture into the baked crust and distribute the spinach and feta evenly.

At this point, Butternut Rosti Quiche should be filled almost to the top without overflowing.

Step 9: Bake the Quiche

Bake for 28 to 35 minutes. The edges should be set while the middle still has a slight wobble.

Butternut Rosti Quiche will continue to firm as it rests, so avoid overbaking.

Step 10: Toast the Walnuts

While the quiche bakes, toast the walnuts in a dry skillet over medium-low heat for 3 to 4 minutes, stirring often.

Step 11: Make the Sage Brown Butter

Melt the butter in a small saucepan over medium heat. Add sage and cook until the butter foams, smells nutty, and turns golden brown. Remove from the heat and stir in lemon juice.

Step 12: Add the Toppings

Let the quiche rest for about 10 minutes. Scatter cranberries, toasted walnuts, extra feta, and parsley over the top. Drizzle lightly with sage brown butter.

Step 13: Slice and Serve

Cut Butternut Rosti Quiche into wedges and serve warm or at room temperature.

Serving Suggestions

Butternut Rosti Quiche works beautifully for brunch with a simple green salad, fresh fruit, roasted tomatoes, or crusty bread.

Butternut Rosti Quiche also pairs well with roasted Brussels sprouts, glazed carrots, lentil salad, or a light soup. For an elegant presentation, finish each slice with a few cranberries, walnuts, and fresh herbs.

If you want an easy no-bake dessert, try this Chocolate Ripple Cake – Easy No-Bake Chocolate Dessert with rich chocolate flavor, creamy layers, and a simple make-ahead finish.

Recipe Tips

For the best Butternut Rosti Quiche, squeeze the grated squash very thoroughly. Excess water is the main reason vegetable crusts become soft.

Use a firm feta that crumbles cleanly, and let the spinach cool slightly before adding it to the eggs.

Do not overbake the filling. A slight wobble in the center is ideal.

Toast the walnuts before adding them for deeper flavor, and watch the brown butter closely because it can burn quickly.

Easy Variations

Butternut Rosti Quiche is easy to customize with different vegetables and cheeses.

Replace some of the feta with goat cheese or Gruyère. Add sautéed mushrooms, caramelized onions, or roasted red peppers to the filling.

For extra sweetness, use dried cherries instead of cranberries. Pecans can replace walnuts, and pumpkin seeds work well for a nut-free option.

For a Mediterranean version, add chopped sun-dried tomatoes, olives, and fresh oregano.

For a fresh and creamy meal, try this Creamy Blueberry Chicken Salad with tender chicken, juicy blueberries, crisp vegetables, and a light creamy dressing.

Make-Ahead Instructions

Butternut Rosti Quiche can be prepared in stages, which is useful for brunches and holidays.

Bake the crust up to one day ahead, cool it completely, cover, and refrigerate. The spinach mixture can also be cooked in advance.

For the best texture, whisk the egg mixture and assemble shortly before baking. You can also bake the entire quiche one day ahead and reheat gently before serving.

Prepare the sage brown butter fresh if possible because its aroma is strongest right after cooking.

Storage and Reheating

Store leftover Butternut Rosti Quiche in an airtight container in the refrigerator for up to 4 days.

To reheat, place slices on a baking sheet and warm at 325°F or 165°C for about 10 to 12 minutes. The microwave also works, but the crust will be softer.

Freeze individual slices if you want longer storage.

Nutrition Information

Approximate nutrition per serving:

Calories: 330
Protein: 12 g
Carbohydrates: 23 g
Fat: 22 g
Saturated Fat: 10 g
Fiber: 4 g
Sugar: 8 g
Sodium: 520 mg

Nutrition values are estimates and may vary depending on the feta, cream, squash, nuts, and serving size.

Frequently Asked Questions

Can I make Butternut Rosti Quiche without heavy cream?

Yes. Replace the heavy cream with additional whole milk or half-and-half. The filling will be slightly lighter but still creamy.

Can I use frozen spinach?

Yes. Thaw it completely and squeeze out as much water as possible.

Can I make the crust with sweet potato?

Yes. Grated sweet potato can replace some or all of the butternut squash.

Can I make it gluten-free?

Yes. Replace the flour in the crust with a gluten-free all-purpose flour blend or cornstarch.

Can I leave out the cranberries?

Yes. They add sweetness and color, but the recipe still works without them.

What can I use instead of walnuts?

Pecans, almonds, hazelnuts, or pumpkin seeds all work well.

Can I serve it cold?

Yes. It can be served chilled or at room temperature, although the flavors are especially good when slightly warm.

How do I know when it is done?

The edges should be set and the center should have only a gentle wobble. It will continue setting as it cools.

Final Thoughts

Butternut Rosti Quiche combines a crisp golden squash crust with creamy spinach and feta filling, tart cranberries, crunchy walnuts, and fragrant sage brown butter.

The combination makes Butternut Rosti Quiche ideal for autumn brunches, Thanksgiving, Christmas, and vegetarian dinners.

Because Butternut Rosti Quiche can be prepared partly in advance and served warm or at room temperature, it is convenient for entertaining.

Keep Butternut Rosti Quiche in your seasonal collection whenever you want a savory bake with warm fall flavor and an impressive presentation.