Golden Butternut & Spinach Rosti Rolls with Feta, Caramelized Onion, Sage & Walnut Sesame Crust

Description

These Rosti Rolls are a beautiful savory dish made with grated butternut squash, fresh spinach, creamy feta, sweet caramelized onions, fragrant sage, and a crunchy walnut sesame crust. The outside becomes golden and crisp, while the inside stays soft, flavorful, and satisfying.

This recipe is ideal for a special brunch, vegetarian dinner, holiday table, weekend lunch, or elegant appetizer. Although the finished dish looks impressive, the ingredients are simple and the preparation is easy to follow.

The natural sweetness of butternut squash works beautifully with salty feta and caramelized onion. Fresh sage adds an earthy flavor, while walnuts and sesame seeds provide a delicious crunch. These Rosti Rolls can also be prepared ahead, making them convenient for entertaining. These Rosti Rolls are perfect for a cozy vegetarian dinner or an elegant weekend brunch.

Prep Time: 30 minutes
Cook Time: 45 minutes
Total Time: 1 hour 15 minutes
Servings: 6

Ingredients

For the Rosti Base

3 cups peeled and coarsely grated butternut squash

2 cups grated potatoes

2 large eggs

1/3 cup all-purpose flour

1/2 teaspoon salt

1/2 teaspoon black pepper

1/2 teaspoon garlic powder

1 teaspoon dried sage

2 tablespoons olive oil

For the Filling

2 cups fresh spinach

1 medium yellow onion, thinly sliced

1 tablespoon olive oil

1 teaspoon butter

1/2 teaspoon dried sage

1/2 cup crumbled feta cheese

1/4 teaspoon black pepper

1 small pinch of salt

For the Walnut Sesame Crust

1/2 cup finely chopped walnuts

2 tablespoons sesame seeds

1/4 cup panko breadcrumbs

1 tablespoon olive oil

1 teaspoon fresh sage, finely chopped

Optional Garnish

Fresh sage leaves

Extra feta

Chopped walnuts

Sesame seeds

Fresh parsley

Step-by-Step Instructions

Prepare the Butternut Squash and Potatoes

Peel the butternut squash and remove the seeds.

Coarsely grate the squash using a box grater or food processor.

Peel the potatoes and grate them separately.

Place both vegetables in a clean kitchen towel.

Squeeze firmly to remove as much moisture as possible.

This step is important because excess moisture can make the rosti base soft instead of crisp.

Transfer the grated vegetables to a large bowl.

Add the eggs, flour, salt, black pepper, garlic powder, and dried sage.

Mix everything until evenly combined.

The mixture should hold together when gently pressed.

Cook the Rosti Base

Preheat the oven to 400°F (200°C).

Line a large baking sheet with parchment paper.

Spread the butternut and potato mixture evenly across the sheet.

Create a rectangle about 1/2 inch thick.

Press the mixture firmly so it stays together.

Brush the surface lightly with olive oil.

Bake for approximately 25 to 30 minutes.

The edges should become golden and slightly crisp.

The center should be cooked through but still flexible enough to roll.

Remove the tray from the oven and let the base cool for about 5 minutes.

A slightly warm base is easier to roll without breaking.

This golden base gives the Rosti Rolls their crisp exterior and hearty texture

Caramelize the Onion

While the rosti bakes, prepare the onion.

Heat olive oil and butter in a skillet over medium-low heat.

Add the sliced onion.

Cook slowly for about 15 to 20 minutes.

Stir occasionally.

The onions should become soft, golden, and lightly caramelized.

Add sage and black pepper during the final few minutes.

Avoid using high heat because the onions can burn before they become sweet.

Caramelized onion adds a rich flavor that balances the earthy butternut squash.

The sweet onions create a delicious contrast inside the Rosti Rolls.

Wilt the Spinach

Add the fresh spinach to the skillet with the caramelized onions.

Cook for 1 to 2 minutes.

Stir until the spinach wilts.

Remove the skillet from the heat.

Allow the mixture to cool slightly.

If there is excess moisture, gently squeeze it out.

Too much moisture can make the filling difficult to roll.

Transfer the spinach and onion mixture to a bowl.

Fold in the crumbled feta.

Taste and adjust the seasoning if needed.

The filling should be savory, creamy, and slightly sweet.

Prepare the Walnut Sesame Crust

Combine the chopped walnuts, sesame seeds, panko breadcrumbs, fresh sage, and olive oil in a small bowl.

Mix until the ingredients are evenly coated.

The walnut and sesame mixture creates a crunchy topping that adds texture to the soft filling.

Set the mixture aside.

This crunchy topping gives the Rosti Rolls an irresistible finishing texture.

Assemble the Rosti Roll

Spread the spinach, feta, and caramelized onion mixture evenly over the baked rosti base.

Leave a small border around the edges.

Start rolling from one short side.

Use the parchment paper to help guide the roll.

Roll slowly and firmly.

Do not press too hard because the base may crack.

If small cracks appear, gently press the mixture back together.

Place the finished roll seam-side down.

Brush the outside lightly with olive oil.

Sprinkle the walnut sesame mixture over the top.

Press gently so the crust sticks.

These Rosti Rolls should now have a golden vegetable exterior with a flavorful spinach and feta center.

Roll the filling gently to keep the Rosti Rolls neat and evenly shaped.

Bake Again

Return the assembled roll to the oven.

Bake for another 12 to 15 minutes.

The crust should become golden and crisp.

The filling should be hot.

Remove the roll from the oven.

Let it rest for 5 to 10 minutes before slicing.

This short resting period helps the roll hold its shape.

Use a sharp knife to cut it into six portions.

Tips for the Best Results

Remove as much moisture as possible from the grated vegetables.

A dry rosti mixture creates a firmer base.

Spread the mixture evenly on the baking sheet.

Keep the base around 1/2 inch thick.

Cook the onion slowly for the best caramelized flavor.

Squeeze excess moisture from the spinach.

Do not overfill the rosti.

Too much filling can make rolling difficult.

Use parchment paper to help create a tight roll.

Allow the finished roll to rest before slicing.

These simple steps help your Rosti Rolls stay golden, crisp, and easy to slice.

Easy Variations

For a stronger cheese flavor, add grated Parmesan to the rosti base.

Goat cheese can replace feta for a creamier filling.

Kale can replace spinach.

Pecans can replace walnuts.

Pumpkin seeds can replace sesame seeds.

For extra heat, add red pepper flakes to the filling.

A little lemon zest can brighten the flavor.

You can also add finely chopped roasted red peppers.

These changes make Rosti Rolls easy to customize for different meals.

These simple swaps make the Rosti Rolls easy to adapt for different preferences.

Make-Ahead Instructions

The rosti base can be baked earlier in the day.

Allow it to cool completely before covering it.

The caramelized onion and spinach filling can also be prepared ahead.

Store the filling in the refrigerator.

When ready to assemble, bring the components together and add the feta.

Roll the rosti and apply the walnut sesame crust.

Bake until hot and golden.

For a dinner party, preparing the components in advance can save time.

Preparing the components ahead makes these Rosti Rolls convenient for entertaining.

Serving Suggestions

Serve the warm Rosti Rolls with a simple green salad.

A lemony yogurt sauce makes a refreshing accompaniment.

You can also serve them with roasted vegetables.

A tomato and cucumber salad provides a fresh contrast.

For brunch, pair the rolls with poached eggs and fresh fruit.

For a holiday table, garnish with sage leaves, extra feta, and chopped walnuts.

The golden color makes the dish especially attractive on a serving platter.

Warm Rosti Rolls pair beautifully with a crisp green salad or roasted vegetables.

Storage and Reheating

Store leftover Rosti Rolls in an airtight container.

Refrigerate for up to 3 days.

Reheat them in the oven at 350°F (175°C) until warmed through.

An air fryer can also help restore some crispness.

Avoid microwaving for too long because the rosti exterior may become soft.

Slice the roll after reheating for the best presentation.

Reheating the Rosti Rolls in the oven helps restore their golden crust.

Frequently Asked Questions

Can I use pumpkin instead of butternut squash?

Yes. Pumpkin can replace butternut squash, although it may contain more moisture. Squeeze it well before mixing.

Can I make the recipe gluten-free?

Yes. Use gluten-free flour and gluten-free breadcrumbs.

Can I use sweet potato?

Yes. Sweet potato gives the base a sweeter flavor and works well with feta and sage.

Can I replace feta?

Goat cheese, ricotta, or a mild crumbly cheese can be used instead.

Can I prepare the filling ahead?

Yes. Store the cooked spinach and onion mixture in the refrigerator until needed.

Can I freeze the finished roll?

It is better to freeze the baked rosti base or filling separately. The finished roll may lose some crispness after freezing.

How do I prevent cracking?

Avoid overbaking the base. It should be cooked but still flexible. Also, roll it while it is slightly warm.

Nutrition Information

Approximate nutrition per serving:

Calories: 330 kcal
Protein: 10g
Carbohydrates: 39g
Fat: 16g
Fiber: 6g
Sugar: 7g
Sodium: 480mg

Nutrition values are estimates and can vary depending on the exact ingredients and serving size.

Why You Will Love This Recipe

These Rosti Rolls combine several delicious flavors in one beautiful dish.

Butternut squash provides natural sweetness.

Potatoes create a crisp and hearty base.

Spinach adds freshness.

Feta brings salty creaminess.

Caramelized onions add rich sweetness.

Sage gives the recipe an earthy aroma.

Walnuts create crunch.

Sesame seeds add a nutty finish.

The result is a dish that looks special without requiring complicated cooking techniques.

It works particularly well during fall and winter when squash and comforting flavors are especially appealing.

The recipe can also be adapted to different dietary needs.

Use gluten-free flour and breadcrumbs when needed.

Choose a vegetarian-friendly cheese.

Add extra vegetables for more variety.

You can even prepare the components ahead of time.

Final Thoughts

These Rosti Rolls are a creative way to combine butternut squash, potatoes, spinach, feta, caramelized onion, sage, walnuts, and sesame seeds.

The golden rosti exterior provides a crisp texture, while the filling remains soft and flavorful.

For the best results, squeeze the grated vegetables thoroughly before baking.

Cook the onion slowly to develop its natural sweetness.

Keep the spinach filling relatively dry.

Roll the rosti gently while it is still warm.

Then finish the outside with the walnut sesame crust.

The second bake gives the crust a beautiful golden color and extra crunch.

Serve the finished roll warm with a fresh salad, roasted vegetables, or a creamy yogurt sauce.

These Rosti Rolls are elegant enough for a holiday table but simple enough for a relaxed weekend meal.

The combination of sweet squash, savory feta, caramelized onion, fragrant sage, and crunchy walnuts creates a balanced flavor in every slice.

Whether served as a main dish, side dish, brunch recipe, or appetizer, these Rosti Rolls bring color and texture to the table.

The combination of sweet squash and savory filling makes these Rosti Rolls especially satisfying.