Feta and Spinach Stuffed Grilled Cheese

Featured in: Weeknight Dinners

Transform a classic sandwich into something extraordinary with this feta and spinach twist. Fresh spinach is sautéed with garlic until tender, then combined with tangy crumbled feta and optional mozzarella for extra creaminess. The filling is tucked between thick slices of sourdough or country bread, buttered on the outside, and grilled until the bread turns golden brown and the cheese melts into every crevice. The result is a warm, savory bite with perfectly crispy edges and a luscious center. Ready in just 20 minutes, this vegetarian-friendly sandwich is ideal for lunch or a light dinner.

Updated on Tue, 20 Jan 2026 12:52:00 GMT
Golden-brown Feta & Spinach Stuffed Grilled Cheese sandwich cut diagonally on a wooden board, revealing melted feta and sautéed spinach filling. Save
Golden-brown Feta & Spinach Stuffed Grilled Cheese sandwich cut diagonally on a wooden board, revealing melted feta and sautéed spinach filling. | stellarcrust.com

The smell of garlic hitting hot olive oil still pulls me back to my first apartment kitchen, where I discovered that ordinary grilled cheese could become something extraordinary with just a few simple additions. I was tired of the same old lunch routine, staring at a block of feta and a bag of spinach that needed to be used. That afternoon experiment changed everything I thought I knew about comfort food.

My sister came over unexpectedly that day, skeptical about spinach in her grilled cheese. One bite in and she was silent, then promptly asked me to make her a second sandwich. Now its the first thing she requests whenever she visits, and weve turned it into our little tradition—standing at the stove, catching up while the bread turns golden and the cheese starts to bubble out the edges.

Ingredients

  • 2 cups fresh spinach, chopped: Baby spinach works beautifully here and requires minimal prep
  • 1 garlic clove, minced: Fresh garlic makes all the difference—avoid the jarred stuff
  • 1/2 cup crumbled feta cheese: The salty tang is what makes this sandwich sing
  • 1/2 cup shredded mozzarella cheese: Optional but recommended for that perfect melt factor
  • 2 tablespoons unsalted butter, softened: Room temperature spreads evenly without tearing the bread
  • 4 thick slices country-style or sourdough bread: Sturdy bread holds up better to the hearty filling
  • 1 tablespoon olive oil: For sautéing the spinach and garlic
  • 1/4 teaspoon black pepper: Freshly cracked adds the best aroma
  • Pinch of salt: Use sparingly since feta brings plenty of saltiness

Instructions

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Sauté the aromatics:
Heat olive oil in a skillet over medium heat. Add minced garlic and sauté for 30 seconds until fragrant but not browned.
Wilt the spinach:
Add chopped spinach to the skillet, stirring constantly until wilted, about 2 minutes. Season with salt and pepper, then remove from heat to cool slightly.
Mix the filling:
In a small bowl, combine the sautéed spinach with crumbled feta and shredded mozzarella. Mix until evenly distributed.
Assemble the sandwiches:
Lay out your bread slices and spread the spinach-feta mixture over two slices. Top with remaining bread to create sandwiches.
Butter the bread:
Spread softened butter generously on the outside of each sandwich. This is what creates that gorgeous golden crust.
Grill to perfection:
Heat a clean skillet over medium-low heat. Place sandwiches in the pan and cook for 3 to 4 minutes per side, pressing gently with a spatula.
Rest and serve:
Let the sandwiches rest for 1 minute after cooking—this keeps the filling from spilling out when you slice. Cut diagonally and serve warm.
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Keeps spices within easy reach while cooking, helping you season dishes quickly during everyday meal prep.
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Feta & Spinach Stuffed Grilled Cheese on a white plate, paired with a creamy bowl of tomato soup for a cozy lunch. Save
Feta & Spinach Stuffed Grilled Cheese on a white plate, paired with a creamy bowl of tomato soup for a cozy lunch. | stellarcrust.com

This sandwich has become my go-to comfort food during rainy weekends, especially paired with a steaming bowl of tomato soup. Theres something about the combination of warm, melty cheese and vibrant greens that feels like a hug in food form.

Choosing the Right Bread

Through trial and error, Ive learned that not all breads are created equal here. Sourdough brings a pleasant tang that complements the feta, while country white offers a neutral canvas that lets the filling shine. Whatever you choose, look for slices that are at least half an inch thick to stand up to the hearty filling without becoming floppy.

Make-Ahead Tips

You can prepare the spinach-feta mixture up to two days in advance and store it in an airtight container in the refrigerator. When youre ready to eat, just bring the filling to room temperature for easier spreading and assemble your sandwiches fresh. This trick has saved me on countless busy weeknights.

Serving Suggestions

While this sandwich is satisfying on its own, pairing it with the right sides elevates the whole meal. A simple cucumber and tomato salad with vinaigrette cuts through the richness beautifully. For heartier appetites, a cup of roasted tomato soup or butternut squash soup turns it into a complete dinner.

  • Add a handful of sun-dried tomatoes to the filling for extra depth
  • A drizzle of balsamic glaze over the finished sandwich is surprisingly good
  • Try whole grain or seeded bread for added texture and nutritional value
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Thick-sliced sourdough Feta & Spinach Stuffed Grilled Cheese with crispy buttered crusts and visible fresh spinach, ready to eat warm. Save
Thick-sliced sourdough Feta & Spinach Stuffed Grilled Cheese with crispy buttered crusts and visible fresh spinach, ready to eat warm. | stellarcrust.com

Hope this recipe brings as much comfort to your kitchen as it has to mine over the years. Happy cooking!

Recipe FAQs

Can I use pre-cooked frozen spinach?

Yes, thaw and squeeze out excess moisture before combining with the cheese filling to prevent a soggy sandwich.

What bread works best for this sandwich?

Thick-cut sourdough, country-style, or brioche work wonderfully. Avoid thin sandwich bread as it tears easily under the filling's weight.

How do I prevent the cheese from leaking out?

Ensure the spinach filling is evenly distributed and not overstuffed. Let cooked spinach cool slightly and squeeze out excess moisture before mixing with cheese.

Can I make this ahead of time?

Assemble the sandwich up to 2 hours ahead and refrigerate. Cook just before serving for the best melted cheese texture and crispy bread.

What pairs well with this sandwich?

Tomato soup, a crisp garden salad, or roasted vegetable sides complement the savory, cheesy filling beautifully.

How do I make this gluten-free?

Simply swap the regular bread for certified gluten-free bread. The cooking method and filling remain the same.

Feta and Spinach Stuffed Grilled Cheese

Thick-cut bread filled with garlicky sautéed spinach, creamy feta, and melted cheese, toasted to golden perfection.

Time to Prep
10 minutes
Time to Cook
10 minutes
Overall Time
20 minutes
Recipe by Logan Smith


Skill Level Easy

Cuisine American Mediterranean

Makes 2 Portions

Diet Preferences Meatless

What You'll Need

Vegetables

01 2 cups fresh spinach, chopped
02 1 garlic clove, minced

Dairy

01 1/2 cup crumbled feta cheese
02 1/2 cup shredded mozzarella cheese
03 2 tablespoons unsalted butter, softened

Bread

01 4 thick slices country-style or sourdough bread

Seasonings

01 1 tablespoon olive oil
02 1/4 teaspoon black pepper
03 Salt to taste

How to Make It

Step 01

Prepare the Garlic and Spinach: Heat olive oil in a skillet over medium heat. Add minced garlic and sauté for 30 seconds until fragrant. Add chopped spinach and cook, stirring constantly, until wilted, approximately 2 minutes. Season lightly with salt and pepper. Remove from heat and allow to cool slightly.

Step 02

Combine Filling Ingredients: In a mixing bowl, combine the cooled sautéed spinach with crumbled feta cheese and shredded mozzarella cheese. Mix thoroughly until evenly distributed.

Step 03

Assemble Sandwiches: Lay out all 4 bread slices. Divide the spinach-feta mixture evenly over 2 slices, then top each with a remaining bread slice to create 2 sandwiches.

Step 04

Butter the Exterior: Spread softened butter evenly on the outer surfaces of both assembled sandwiches.

Step 05

Toast the Sandwiches: Heat a clean skillet or griddle over medium-low heat. Place sandwiches in the skillet and cook for 3 to 4 minutes per side, pressing lightly with a spatula, until the bread is golden brown and the cheese is fully melted.

Step 06

Rest and Serve: Remove sandwiches from heat and let rest for 1 minute. Slice diagonally if desired and serve immediately while warm.

Tools You Need

  • Skillet or griddle
  • Spatula
  • Mixing bowl
  • Knife and cutting board

Allergy Info

Always review each ingredient for allergens, and ask a healthcare provider if you’re unsure.
  • Contains wheat (bread)
  • Contains milk (feta cheese, mozzarella cheese, butter)
  • Substitute with gluten-free bread for gluten sensitivity
  • Use lactose-free cheese alternatives for lactose intolerance

Nutrition Info (per portion)

This nutrition information serves as a guideline. For health concerns, talk to a professional.
  • Energy: 390
  • Total Fat: 22 g
  • Carbohydrates: 33 g
  • Proteins: 15 g