Sweet Potato & Feta Gratin with Walnuts Recipe

There is something truly magical about the Sweet Potato & Feta Gratin with Walnuts that makes it a standout dish for any occasion. This Mediterranean-inspired layered gratin combines the natural sweetness of tender sweet potatoes and earthy beets with the creamy tang of feta cheese and the crunchy warmth of toasted walnuts. Every bite offers a harmonious blend of flavors and textures, making it as comforting as it is elegant. Whether you’re serving it as a side or a vegetarian main, this dish will easily become a beloved favorite in your kitchen.

this Recipe

Ingredients You’ll Need

Getting started with the Sweet Potato & Feta Gratin with Walnuts is a breeze thanks to its straightforward ingredients. Each component plays a vital role, from the vibrant vegetables that bring color to the plate to the rich cream and aromatic herbs that elevate its flavor profile.

• Sweet potatoes: Choose firm, medium-sized roots for perfectly tender, sweet layers.
• Beets: Peeled and thinly sliced, they add an earthy taste and gorgeous deep red hues.
• Onion: Thinly sliced to provide a subtle sharpness that mellows during baking.
• Feta cheese: Crumbled for a creamy, salty contrast against the sweetness of the vegetables.
• Heavy cream or coconut cream: Adds luscious richness that binds the gratin together beautifully.
• Garlic: Minced to infuse a gentle savory depth without overpowering.
• Fresh thyme leaves: For a fragrant herbal note that brightens the dish.
• Walnuts: Roughly chopped and toasted on top for satisfying crunch and nuttiness.
• Olive oil: Drizzled to enhance flavor and help create a golden, crispy topping.
• Salt and black pepper: To taste, bringing all the flavors into perfect balance.
• Fresh parsley: For a fresh, vibrant garnish that visually pops.

How to Make Sweet Potato & Feta Gratin with Walnuts

Step 1: Prepare Your Oven and Cream Mixture

Preheat your oven to 375 degrees Fahrenheit (190 degrees Celsius) so it’s nice and ready to go. Meanwhile, whisk together your heavy cream or coconut cream with minced garlic, fresh thyme leaves, a pinch of salt, and black pepper. This fragrant cream mixture is the secret to a gratin that’s rich and full of flavor without being too heavy.

Step 2: Slice Your Vegetables Thinly

Peel the sweet potatoes and beets, then slice them as thin as you can — about 1/8 inch thick is perfect. Thin slices ensure the vegetables cook evenly and meld their flavors throughout the layers. Don’t forget to slice the onion equally thin to allow it to soften and sweeten as it bakes.

Step 3: Layer the Vegetables and Feta Cheese

Grease your baking dish lightly to keep the gratin from sticking. Begin by layering your sweet potato slices, followed by a layer of beets, and then onion slices. Sprinkle some crumbled feta cheese over the vegetables as you go. Repeat this pattern until all ingredients have been used, making sure to end with cheese on top. This layering is what makes the Sweet Potato & Feta Gratin with Walnuts so visually stunning and deliciously balanced.

Step 4: Pour Cream and Add Toppings

Pour the cream mixture evenly over the layered vegetables, allowing it to nestle in between the layers for perfect moisture and flavor infusion. Sprinkle the chopped walnuts on top, then drizzle everything with olive oil. Cover the dish with foil to keep the moisture in as it bakes.

Step 5: Bake Until Tender and Golden

Bake the covered gratin for 35 to 40 minutes, letting the vegetables soften and the cream soak in nicely. Then remove the foil and bake for an additional 15 minutes so the top becomes beautifully golden and slightly crispy. Let the gratin rest a few minutes before serving to allow the layers to settle for easier slicing.

How to Serve Sweet Potato & Feta Gratin with Walnuts

Garnishes

Fresh parsley is the perfect finishing touch, bringing a bright pop of green that complements the warm, earthy tones of the gratin. A light sprinkle of extra chopped walnuts adds texture and crunch just before serving. You can even add a drizzle of good-quality olive oil or a squeeze of lemon juice to brighten flavors.

Side Dishes

This Sweet Potato & Feta Gratin with Walnuts pairs beautifully with simple roasted meats like lamb or chicken, or serves as a hearty vegetarian main alongside a crisp green salad. Lightly sautéed greens or a tangy cucumber salad also offer refreshing contrast to the richness of the gratin.

Creative Ways to Present

For a more formal touch, consider making individual portions in small ramekins or muffin tins for a pretty presentation. Layering with alternate vegetables or adding fresh herbs between layers can create stunning visual layers that wow guests. Serving it family-style in a rustic dish accompanied by crusty bread invites everyone to dig in happily.

Make Ahead and Storage

Storing Leftovers

Once cooled, store any leftover Sweet Potato & Feta Gratin with Walnuts in an airtight container in the refrigerator. It keeps well for up to 3 days, making it great for quick, flavorful meals later in the week.

Freezing

You can freeze this gratin for longer storage by wrapping it tightly in foil and placing it in a freezer-safe container. It will stay delicious for up to 2 months. Just thaw overnight in the fridge before reheating for a comforting bite anytime.

Reheating

Reheat leftovers gently in a preheated oven at 350 degrees Fahrenheit (175 degrees Celsius) for about 20 minutes until warmed through, and the top crisps up again. Avoid microwaving if possible to maintain the gratin’s lovely texture.

FAQs

Can I use a different cheese instead of feta?

Absolutely! While feta adds a brilliant salty tang that pairs wonderfully with sweet potatoes and beets, you can substitute with goat cheese or ricotta for a milder, creamier effect. Just expect a slight change in flavor and texture.

Is there a vegan version of this gratin?

Yes! Use coconut cream in place of heavy cream and swap feta cheese with a plant-based cheese alternative or vegan ricotta. Roasted nuts and herbs will still give you a rich, satisfying dish with all the wholesome comfort.

How thin should the vegetable slices be?

Thin slices about 1/8 inch thick are ideal for even cooking and tender layers. Too thick and the gratin might take longer to cook through, risking uneven textures.

Can I add other nuts instead of walnuts?

Certainly! Pecans or almonds will also add lovely crunch and nuttiness to your gratin. Feel free to experiment with what you have on hand, though walnuts are classic for this dish.

What wine pairs well with Sweet Potato & Feta Gratin with Walnuts?

A crisp white wine like Sauvignon Blanc or a light-bodied rosé complements the creamy, earthy flavors beautifully. If you prefer red, a light Pinot Noir works well without overpowering the dish.

Final Thoughts

If you’ve been looking for a dish that effortlessly combines comfort, elegance, and bold Mediterranean flavors, the Sweet Potato & Feta Gratin with Walnuts is your answer. It’s simple to make but packed with layers of taste that will have your friends and family coming back for seconds. I encourage you to whip up this gratin soon and experience firsthand how delightful vegetable dishes can truly be.