Golden Butternut and Spinach Rosti Quiche with Feta Recipe

If you are searching for an elevated, vibrant dish that brings together crisp textures, creamy Mediterranean flavors, and wholesome ingredients, this Golden Butternut and Spinach Rosti Quiche with Feta is your absolute crown jewel.

Traditionally, a quiche relies on a heavy, butter-laden pastry shell. However, this recipe swaps out conventional pie crust for a naturally gluten-free, golden-crisped butternut squash rosti crust. Packed with earthy roasted squash, rich Greek yogurt custard, nutrient-dense baby spinach, tangy Greek feta, and topped with toasted walnuts, sun-dried tomatoes, and a glossy drizzle of honey, this dish effortlessly bridges the gap between sophisticated weekend brunching and satisfying weeknight dining.

Why You Will Love This Mediterranean Rosti Quiche

• 100% Gluten-Free & Nutritious: By utilizing shredded butternut squash (or a sweet potato blend) bound with egg and olive oil, you eliminate refined flour while introducing fiber, beta-carotene, and complex carbohydrates.
• Textural perfection: The contrast between the crunchy shredded rosti rim, the silky Greek yogurt custard, and the toasted walnut topping delivers an unforgettable bite every single time.
• Meal Prep Friendly: Slice it into individual portions and store in the fridge; it holds its shape beautifully and reheats with ease.
• Authentic Mediterranean Profile: Highlighting extra virgin olive oil, garlic, tangy feta, and sweet sun-dried tomatoes, it embodies the heart of Mediterranean coastal eating.

If you enjoy wholesome, vegetable-forward breakfast bakes, you might also love our Spinach Feta Breakfast Casserole Recipe or explore another grain-free classic like our crustless spinach feta quiche.

Ingredients

For the Crispy Rosti Crust:

• 2 1/2 cups Butternut squash (or combination of sweet potato & butternut), peeled and coarsely grated (about 500g)
• 1 large Egg (lightly beaten)
• 1 tbsp Extra virgin olive oil
• 1/2 tsp Garlic powder
• 1/2 tsp Sea salt
• 1/4 tsp Black pepper

For the Mediterranean Custard Filling:

• 6 large Eggs
• 1/2 cup Plain Greek yogurt (2% or full fat)
• 1/4 cup Whole milk (or unsweetened almond milk)
• 3 cups Fresh baby spinach, coarsely chopped
• 1 cup Authentic Greek feta cheese, crumbled (divided)
• 2 cloves Garlic, minced
• 1/2 tsp Dried oregano or fresh thyme leaves
• Sea salt and freshly cracked black pepper, to taste

For the Golden Top & Crunch Garnish:

• 1/3 cup Raw walnuts, roughly chopped
• 2 tbsp Sun-dried tomatoes (packed in olive oil), drained and finely chopped
• 1 tbsp Fresh flat-leaf parsley, finely chopped
• 1 tbsp Raw honey (for drizzling before serving)

Step-by-Step Instructions

Step 1: Prep & Par-Bake the Crust

Preheat your oven to 400°F (200°C). Generously brush a 9-inch deep-dish pie pan or springform pan with extra virgin olive oil.

Step 2: Wring Excess Moisture

Place the coarsely grated butternut squash inside a clean kitchen towel. Gather the corners and squeeze tightly over the sink to wring out as much excess liquid as humanly possible. Removing excess moisture is the essential secret to achieving a golden, crisp rosti crust rather than a soggy bottom.

Step 3: Form the Rosti Crust

In a mixing bowl, combine the squeezed squash shreds, 1 beaten egg, 1 tablespoon of extra virgin olive oil, garlic powder, sea salt, and black pepper. Mix thoroughly until well combined. Press the mixture firmly across the bottom and evenly up the sides of your prepared pan. Bake uncovered for 20 minutes until the edges turn golden and crisp. Remove from the oven and lower the temperature to 375°F (190°C).

Step 4: Sauté the Spinach

Heat 1 teaspoon of extra virgin olive oil in a skillet over medium heat. Add the minced garlic and sauté for 30 seconds until fragrant. Toss in the chopped fresh baby spinach and cook for 1 to 2 minutes until just wilted. Transfer to a fine mesh sieve and press out any remaining liquid.

Step 5: Whisk the Custard

In a medium bowl, vigorously whisk together 6 eggs, plain Greek yogurt, milk, dried oregano, sea salt, and black pepper until completely smooth and emulsified.

Step 6: Layer & Assemble

Distribute the wilted garlic spinach and half of the crumbled Greek feta evenly over the par-baked butternut rosti crust. Pour the egg custard mixture slowly over the top layer.

Step 7: Apply the Crunch Garnish

Scatter the remaining crumbled feta cheese, chopped raw walnuts, and finely chopped sun-dried tomatoes evenly over the top surface of the custard.

Step 8: Bake to Golden Perfection

Place the quiche in the oven at 375°F (190°C) and bake for 35–40 minutes. The quiche is fully cooked when the center is completely set (does not jiggle when nudged) and the top layer of walnuts and feta turns a deep golden brown.

Step 9: Finish & Serve

Remove from the oven and let it rest for 10 minutes at room temperature to settle, ensuring clean, perfect slices. Right before serving, sprinkle with fresh parsley and drizzle warm raw honey over the top surface to complement the savory, salty bite of the feta.

Expert Chef Tips for the Ultimate Rosti Quiche

1. Don’t Skip the Squeeze: Squash and spinach both store high amounts of water. Wringing both ingredients thoroughly ensures your quiche slices clean without weeping.
2. Springform Pan Magic: Using a springform pan gives you dramatic, high-walled slices that showcase the golden sides of the butternut crust.
3. Honey Drizzle Balance: The sweet viscosity of raw honey cuts through the sharp, salty notes of sheep’s milk feta, creating an authentic Mediterranean taste experience. If you love sweet-and-savory feta bakes, be sure to try our recipe for Albanian Baked Feta with Honey and Sesame Seeds.

Golden Butternut and Spinach Rosti Quiche with Feta Recipe

A stunning gluten-free Mediterranean quiche featuring a crispy shredded butternut squash rosti crust filled with a creamy Greek yogurt egg custard, baby spinach, Greek feta, toasted walnuts, and a warm honey drizzle.

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Prep Time 20 minutes mins

Cook Time 55 minutes mins

Servings: 8

Calories: 260

Ingredients Method Notes

Ingredients

  

• * 2 1/2 cups Butternut squash or combination of sweet potato & butternut, peeled and coarsely grated (about 500g)
• * 1 large Egg lightly beaten
• * 1 tbsp Extra virgin olive oil
• * 1/2 tsp Garlic powder
• * 1/2 tsp Sea salt
• * 1/4 tsp Black pepper
• * 6 large Eggs
• * 1/2 cup Plain Greek yogurt 2% or full fat
• * 1/4 cup Whole milk or unsweetened almond milk
• * 3 cups Fresh baby spinach coarsely chopped
• * 1 cup Authentic Greek feta cheese crumbled (divided)
• * 2 cloves Garlic minced
• * 1/2 tsp Dried oregano or fresh thyme leaves
• * Sea salt and freshly cracked black pepper to taste
• * 1/3 cup Raw walnuts roughly chopped
• * 2 tbsp Sun-dried tomatoes packed in olive oil, drained and finely chopped
• * 1 tbsp Fresh flat-leaf parsley finely chopped
• * 1 tbsp Raw honey for drizzling before serving

Method

 

1. Prep & Par-Bake the Crust: Preheat oven to 400°F (200°C). Generously brush a 9-inch deep-dish pie pan or springform pan with extra virgin olive oil.
2. Wring Excess Moisture: Place grated butternut squash in a clean kitchen towel. Squeeze tightly over the sink to remove as much liquid as possible.
3. Form the Rosti Crust: In a bowl, combine squeezed squash, 1 beaten egg, 1 tbsp olive oil, garlic powder, salt, and pepper. Press firmly across the bottom and up the sides of the pan. Bake for 20 minutes until edges turn golden and crisp. Lower oven temperature to 375°F (190°C).
4. Sauté Spinach: Heat 1 tsp olive oil in a skillet over medium heat. Add minced garlic (cook 30 secs), then toss in spinach until wilted (1-2 mins). Press out any excess moisture in a fine mesh sieve.
5. Whisk Custard: In a medium bowl, vigorously whisk together 6 eggs, Greek yogurt, milk, dried oregano, salt, and pepper until completely smooth.
6. Layer & Assemble: Distribute wilted spinach and half of the crumbled feta evenly over the par-baked crust. Pour egg mixture slowly over top.
7. Top Garnish: Scatter remaining feta, chopped walnuts, and sun-dried tomatoes evenly over the top surface.
8. Bake: Bake at 375°F (190°C) for 35–40 minutes until center is completely set and walnuts turn golden brown.
9. Finish & Serve: Let rest for 10 minutes. Sprinkle with fresh parsley and drizzle warm raw honey over top before slicing.

Notes

* Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in an oven at 350°F (175°C) for 10 minutes to maintain crust crispness.

Frequently Asked Questions

Can I make the butternut squash rosti crust in advance?

Yes! You can shred, squeeze, and par-bake the butternut squash crust up to 24 hours in advance. Once par-baked, allow the crust to cool completely, cover it loosely, and store it in the refrigerator. When you are ready to serve, simply add your garlic spinach, feta, egg custard, and top garnishes, then bake as directed.

How do I prevent my rosti quiche crust from becoming soggy?

The secret to a ultra-crispy rosti crust lies in wringing out excess moisture. Butternut squash contains a high amount of natural water; squeezing the coarsely grated shreds thoroughly in a clean kitchen towel over the sink removes this liquid. Additionally, par-baking the crust for 20 minutes before adding the wet egg custard ensures the bottom stays firm and golden.

Can I substitute butternut squash with sweet potato?

Absolutely! Sweet potato works exceptionally well as a direct 1:1 substitute or in combination with butternut squash. Both root vegetables contain similar starch levels and moisture dynamics, resulting in an equally delicious, golden gluten-free crust.

What is the best way to store and reheat leftovers?

• Storage: Allow the quiche to cool completely, then slice and store individual portions in an airtight container in the refrigerator for up to 4 days.
• Reheating: To maintain the crispness of the rosti crust, reheat slices in a preheated oven or toaster oven at 350°F (175°C) for 10–12 minutes. Avoid microwave reheating if you want to preserve the crispy outer edge.

Is this recipe suitable for a dairy-free diet?

To make this quiche dairy-free, substitute the whole milk with unsweetened almond or oat milk, replace the Greek yogurt with a plant-based plain yogurt alternative, and use your favorite vegan crumbled feta cheese.