Mediterranean Roasted Sweet Potato & Spinach Bake with Feta and Walnuts

Sweet Potato Spinach Bake is a colorful Mediterranean-inspired dish made with roasted sweet potatoes, fresh spinach, feta cheese, crunchy walnuts, garlic, herbs, and olive oil. It works beautifully as a vegetarian main dish, hearty side, or meal-prep option. The combination of naturally sweet potatoes, savory feta, and earthy spinach creates a balanced flavor that feels comforting without being too heavy.

This Sweet Potato Spinach Bake is especially useful when you want a simple oven meal made with wholesome ingredients. The roasted vegetables develop deep flavor, while the walnuts add crunch and the feta adds a creamy, salty finish.

Prep Time: 20 minutes
Cook Time: 40 minutes
Total Time: 1 hour
Servings: 6

Ingredients

For the Sweet Potatoes

3 medium sweet potatoes, peeled and cut into 1-inch cubes

2 tablespoons extra virgin olive oil

1/2 teaspoon garlic powder

1 teaspoon smoked paprika

1/2 teaspoon ground cumin

1/2 teaspoon salt

1 teaspoon dried oregano

1/4 teaspoon black pepper

For the Spinach Mixture

1 tablespoon olive oil

3 cloves garlic, minced

1 small red onion, thinly sliced

6 cups fresh baby spinach

1 tablespoon fresh lemon juice

1 teaspoon lemon zest

1/4 teaspoon red pepper flakes, optional

For the Topping

1 cup crumbled feta cheese

1/2 cup chopped walnuts

2 tablespoons chopped fresh parsley

1 tablespoon chopped fresh dill

1 tablespoon extra virgin olive oil

Fresh black pepper, to taste

Why You’ll Love This Recipe

Sweet Potato Spinach Bake combines several textures in one simple dish. The sweet potatoes become tender and lightly caramelized, the spinach stays soft and savory, and the walnuts provide a satisfying crunch.

It is also easy to adapt. You can add chickpeas for extra protein, change the cheese, or include more vegetables depending on what you already have.

Another reason to love Sweet Potato Spinach Bake is that it works for several occasions. Serve it for a weeknight dinner, bring it to a potluck, or prepare portions ahead for lunches.

How to Make Mediterranean Roasted Sweet Potato & Spinach Bake

Step 1: Roast the Sweet Potatoes

Preheat the oven to 425°F or 220°C.

Place the cubed sweet potatoes on a large baking sheet.

Drizzle with olive oil and sprinkle with smoked paprika, oregano, garlic powder, cumin, salt, and black pepper.

Toss until every piece is evenly coated.

Spread the potatoes into a single layer and roast for about 25 minutes, turning once halfway through.

Roasting first gives Sweet Potato Spinach Bake a deeper flavor and prevents the sweet potatoes from becoming overly soft in the finished dish.

Step 2: Prepare the Spinach

While the sweet potatoes roast, heat olive oil in a large skillet over medium heat.

Add the red onion and cook for 3 to 4 minutes until slightly softened.

Stir in the garlic and cook for about 30 seconds.

Add the spinach in batches, stirring until each handful wilts before adding more.

This step removes excess moisture and keeps Sweet Potato Spinach Bake from becoming watery.

Step 3: Season the Spinach Mixture

Once the spinach has wilted, remove the skillet from the heat.

Stir in lemon juice, lemon zest, and red pepper flakes if using.

Season lightly with black pepper.

You may not need much salt because the feta will add plenty of savory flavor later.

Step 4: Assemble the Bake

Reduce the oven temperature to 400°F or 200°C.

Lightly grease a medium baking dish.

Add the roasted sweet potatoes and spread them evenly across the bottom.

Spoon the spinach and onion mixture over the potatoes.

Gently toss or layer the ingredients so the spinach is distributed throughout.

This creates an even base for Sweet Potato Spinach Bake and helps every serving contain both vegetables.

Step 5: Add Feta and Walnuts

Sprinkle the crumbled feta evenly over the top.

Add the chopped walnuts.

Drizzle lightly with extra virgin olive oil.

The feta will soften and lightly brown in the oven, while the walnuts become more fragrant and crisp.

These toppings give Sweet Potato Spinach Bake its signature Mediterranean-style flavor and texture.

Step 6: Bake

Place the dish in the oven and bake uncovered for 12 to 15 minutes.

The feta should be warm and slightly golden, and the walnuts should smell toasted.

Avoid baking for too long because the spinach can dry out.

Step 7: Garnish and Serve

Remove the dish from the oven and let it rest for about 5 minutes.

Sprinkle with fresh parsley, dill, and extra black pepper.

Serve Sweet Potato Spinach Bake warm with lemon wedges if desired.

Serving Suggestions

Sweet Potato Spinach Bake can be served as a vegetarian main dish with a simple salad, hummus, or warm pita bread.

For a more filling meal, pair it with quinoa, couscous, lentils, or chickpeas.

It also works well alongside grilled chicken, baked salmon, roasted turkey, or white fish.

For brunch, serve Sweet Potato Spinach Bake with poached eggs or scrambled eggs for extra protein.

Recipe Tips

Cut the sweet potatoes into similar-sized cubes so they roast evenly.

Do not overcrowd the baking sheet, or the potatoes may steam instead of caramelizing.

Cook the spinach before adding it to the baking dish to remove excess moisture.

Use good-quality feta for the best salty and creamy flavor.

Toast the walnuts lightly if you want an even stronger nutty flavor.

Fresh lemon juice brightens Sweet Potato Spinach Bake and balances the sweetness of the potatoes.

Add herbs after baking so they keep their fresh flavor and color.

Let the dish rest briefly before serving so the layers settle.

Easy Variations

For extra protein, add one can of drained chickpeas before baking.

You can make Sweet Potato Spinach Bake with goat cheese instead of feta for a softer, tangier flavor.

For more vegetables, add roasted bell peppers, zucchini, mushrooms, or artichoke hearts.

Pecans or almonds can replace the walnuts.

If you like sweeter Mediterranean flavors, add a small handful of dried cranberries or chopped dates.

For extra heat, increase the red pepper flakes or add a pinch of cayenne.

For another hearty low-carb bake, try our Low-Carb Zucchini, Mushroom, and Ground Meat Casserole.

Make-Ahead Instructions

Sweet Potato Spinach Bake can be prepared ahead, making it useful for busy days.

Roast the sweet potatoes and cook the spinach mixture up to one day in advance.

Store both components separately in airtight containers in the refrigerator.

When ready to bake, assemble the dish, add feta and walnuts, and cook until everything is heated through.

You may need a few extra minutes if the ingredients are cold.

Storage and Reheating

Store leftover Sweet Potato Spinach Bake in an airtight container in the refrigerator for up to 3 days.

Reheat individual portions in the microwave, or warm the whole dish in a 350°F oven until heated through.

For the best texture, add a few fresh walnuts after reheating.

Freezing is possible, but the spinach and feta may become slightly softer after thawing.

For best quality, refrigerate and enjoy within a few days.

Nutrition Information

Approximate nutrition per serving:

Calories: 330
Protein: 10 g
Carbohydrates: 35 g
Fat: 18 g
Saturated Fat: 6 g
Fiber: 7 g
Sugar: 9 g
Sodium: 470 mg

Nutrition values are estimates and may vary depending on the size of the sweet potatoes and the amount of feta, walnuts, and olive oil used.

Frequently Asked Questions

Can I use frozen spinach?

Yes. Thaw it completely and squeeze out as much liquid as possible before adding it to the recipe. Fresh spinach usually gives Sweet Potato Spinach Bake a lighter texture, but frozen spinach works well.

Can I make this vegan?

Yes. Replace the feta with a dairy-free feta alternative or leave it out entirely.

Can I add protein?

Absolutely. Chickpeas, lentils, shredded chicken, or white beans are all good additions.

Can I use another cheese?

Yes. Goat cheese, ricotta, Parmesan, or mozzarella can be used depending on the flavor you want.

Can I prepare the dish the night before?

Yes. Assemble everything except the walnuts, cover, and refrigerate. Add the walnuts just before baking for better crunch.

What can I use instead of walnuts?

Pecans, almonds, pumpkin seeds, or sunflower seeds are all good substitutes.

Is this recipe good for meal prep?

Yes. Sweet Potato Spinach Bake stores well and can be divided into containers for easy lunches or dinners.

Final Thoughts

Mediterranean Roasted Sweet Potato & Spinach Bake with Feta and Walnuts is a flavorful way to combine simple vegetables with classic Mediterranean ingredients. Roasted sweet potatoes bring natural sweetness, while spinach, feta, walnuts, garlic, herbs, and lemon add savory contrast.

Sweet Potato Spinach Bake is versatile enough to serve as a vegetarian main course or as a hearty side dish with chicken, fish, or grains. It also works well for meal prep because the ingredients hold up nicely after reheating.

Whether you make Sweet Potato Spinach Bake for a weeknight dinner, brunch, or gathering, the combination of roasted vegetables, creamy feta, and crunchy walnuts makes it an easy recipe worth repeating.

If you enjoy easy low-carb comfort food, you may also like our Low-Carb Crustless Pizza Bowl.