Feta & Spinach Stuffed Grilled Cheese

Featured in: Oven & Skillet Basics

Transform your grilled cheese with this sophisticated vegetarian twist. Garlicky sautéed spinach and crumbled feta create a melty, flavorful filling sandwiched between thick slices of buttered bread. Cooked until golden brown and crispy on the outside with a warm, gooey center, this elevated comfort food takes just 20 minutes from start to finish.

Updated on Wed, 21 Jan 2026 12:50:00 GMT
A close-up of Feta & Spinach Stuffed Grilled Cheese, golden-brown and melty, served on a rustic plate with fresh spinach leaves. Save
A close-up of Feta & Spinach Stuffed Grilled Cheese, golden-brown and melty, served on a rustic plate with fresh spinach leaves. | dailyhlib.com

The rain was coming down hard last Tuesday, and somehow that always makes me crave something warm and comforting. I'd been staring at a block of feta in my fridge all morning, wondering what to do with it besides the usual salad situation. That's when it hit me, why not stuff it inside a grilled cheese? The first bite was absolutely incredible, the salty tang cutting through all that melty goodness while the garlic spinach added this fresh, earthy note I hadn't expected.

Last weekend my sister came over, exhausted from a crazy work week. I made these for us, and we ended up eating at the counter while catching up about everything and nothing. She took one bite and immediately asked for the recipe, saying it was exactly what she didn't know she needed. There's something about the combination of hot, crispy bread and that cool, creamy spinach filling that just hits different.

Ingredients

  • 2 cups fresh spinach, chopped: Fresh wilts down beautifully and absorbs the garlic flavor better than frozen, plus it adds a lovely vibrant color to your filling
  • 1 garlic clove, minced: Don't be tempted to add more, one clove gives just enough aromatic warmth without overpowering the delicate feta
  • 1/2 cup crumbled feta cheese: The star of the show, buy a block and crumble it yourself for better texture and bigger flavor crystals
  • 1/2 cup shredded mozzarella cheese: This is your melting workhorse that holds everything together, though you can skip it if you want an even stronger feta presence
  • 2 tablespoons unsalted butter, softened: Softened butter spreads more evenly, ensuring every inch of your bread gets that gorgeous golden crunch
  • 4 thick slices country-style or sourdough bread: Sturdy bread is crucial here, it needs to hold up to the hearty filling without getting soggy or falling apart
  • 1 tablespoon olive oil: Use this to sauté your spinach, it imparts a subtle fruitiness that complements the Mediterranean flavors
  • 1/4 teaspoon black pepper: Freshly cracked adds a little spicy warmth that plays nicely with the feta
  • Pinch of salt: Go easy here since the feta brings plenty of its own saltiness, just enough to wake up the spinach

Instructions

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Sauté the aromatics:
Heat that olive oil in your skillet until it shimmers slightly, then toss in the minced garlic. Watch it carefully, you want it to become fragrant and pale gold, about 30 seconds, which releases all those lovely aromatic oils without any bitterness.
Wilt the spinach:
Throw in your chopped spinach and stir constantly as it transforms from a mountain to a manageable heap. This should take about 2 minutes, and you'll know it's done when it's dark green and tender but not completely mushy.
Create the filling:
Let the spinach cool for just a minute so it doesn't instantly melt your cheese, then mix it with the crumbled feta and mozzarella in a bowl. Use your hands to really incorporate everything, breaking up any large feta chunks so every bite gets that perfect distribution.
Assemble the sandwiches:
Lay out all four bread slices and divide your filling between just two of them, spreading it all the way to the edges but not quite over, otherwise it'll ooze out when you press them down. Top with the remaining bread slices and press gently to help everything settle.
Butter the bread:
Spread the softened butter on the outside of each sandwich, being generous but reasonable. You want enough to create that golden, crispy crust we're all here for, but not so much that it becomes greasy or overwhelming.
Grill to perfection:
Place your sandwiches in a clean skillet over medium-low heat, the lower temperature is key because it gives the cheese time to melt completely before the bread burns. Cook for about 3 to 4 minutes per side, pressing down gently with your spatula to encourage good contact with the pan.
Rest and serve:
Let them rest for a full minute on a cutting board so the cheese sets slightly and doesn't come gushing out when you slice. Cut diagonally, because we all know grilled cheese tastes better that way, and serve immediately while still hot and melty.
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Golden-brown slices of Feta & Spinach Stuffed Grilled Cheese reveal a vibrant green spinach and creamy feta filling on a wooden cutting board. Save
Golden-brown slices of Feta & Spinach Stuffed Grilled Cheese reveal a vibrant green spinach and creamy feta filling on a wooden cutting board. | dailyhlib.com

This sandwich has become my go-to when friends drop by unexpectedly and I need something impressive but quick. Last month my neighbor smelled them cooking through our shared wall and knocked on my door with a hopeful look in her eyes. We ended up sitting on my porch sharing these and talking until the sun went down, and I think that's really what food is supposed to be about.

Bread Choices That Work

I've tested this with all sorts of bread and country-style is definitely my favorite, with that thick, sturdy structure that stands up beautifully to the generous filling. Sourdough adds a lovely tang that plays wonderfully with the feta, while whole wheat brings a nutty depth that makes the whole thing feel a bit more wholesome. Whatever you choose, just make sure it's thick enough not to fall apart when you bite into all that melty goodness.

Make It Your Own

Sometimes I'll add sun-dried tomatoes to the filling when I want something extra savory and intense. Other times, chopped roasted red peppers find their way in, bringing this sweetness that balances the salty feta perfectly. Fresh herbs like basil or oregano can completely transform the profile too, giving it more of that Mediterranean garden feel. The base recipe is incredible on its own, but these little additions make it feel new every time.

Serving Ideas

A simple tomato soup is the classic pairing for good reason, that acid cuts right through all the rich cheese and ties everything together. A crisp green salad with a vinaigrette works beautifully too, adding some freshness and crunch to contrast with the warm, soft sandwich. Sometimes I'll just serve it with some pickled vegetables on the side for that hit of acid.

  • Let your assembled sandwiches sit for a few minutes before grilling, this helps the bread absorb some of the filling's moisture and prevents sogginess
  • If your feta is especially salty, skip the pinch of salt in the spinach to keep things balanced
  • A panini press works wonderfully here if you want those gorgeous grill marks and extra crispy exterior without much effort
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A half-bite of Feta & Spinach Stuffed Grilled Cheese shows melted mozzarella and garlicky spinach oozing from thick sourdough bread slices. Save
A half-bite of Feta & Spinach Stuffed Grilled Cheese shows melted mozzarella and garlicky spinach oozing from thick sourdough bread slices. | dailyhlib.com

There's something so satisfying about taking that first bite and having everything stay perfectly in place, the crunch giving way to all that warm, savory filling. I hope this becomes one of those recipes you turn to again and again, just like I have.

Recipe FAQs

Can I prepare the spinach-feta filling ahead of time?

Yes, you can make the filling up to 24 hours in advance. Store it in an airtight container in the refrigerator, then assemble and cook the sandwiches when ready.

What bread works best for this sandwich?

Thick-cut country-style or sourdough bread works wonderfully. For added nutrition, try whole wheat or multigrain varieties. Ensure slices are at least 3/4-inch thick for proper toasting and melting.

How do I prevent the bread from burning while the cheese melts?

Cook over medium-low heat rather than high heat, which allows the cheese to melt gradually while the bread develops a golden crust. Press lightly with a spatula for even cooking, cooking 3-4 minutes per side.

Can I add other vegetables to this filling?

Absolutely. Sun-dried tomatoes, roasted red peppers, caramelized onions, or sautéed mushrooms all complement the feta and spinach beautifully. Keep additions minimal to prevent excessive moisture.

Is there a dairy-free version I can make?

Yes. Use lactose-free feta and mozzarella, or try cashew-based cheese alternatives. Ensure your butter is also dairy-free. The flavor profile will differ slightly but remains delicious.

Feta & Spinach Stuffed Grilled Cheese

A savory twist on classic grilled cheese: thick bread filled with garlicky sautéed spinach and tangy feta, toasted to golden perfection.

Prep time
10 minutes
Time to cook
10 minutes
Total duration
20 minutes
Created by Declan OBrien


Skill level Easy

Cuisine type American Mediterranean

Makes 2 Number of servings

Dietary info Vegetarian-friendly

Needed ingredients

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 Pinch of salt

How to make it

Step 01

Sauté 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 frequently, until wilted, approximately 2 minutes. Season lightly with salt and pepper. Remove from heat and allow to cool slightly.

Step 02

Prepare cheese filling: In a bowl, combine sautéed spinach with crumbled feta cheese and shredded mozzarella cheese. Mix thoroughly until well combined.

Step 03

Assemble sandwiches: Lay out all bread slices. Evenly distribute the spinach-feta mixture over two slices, then top each with a remaining bread slice to form two sandwiches.

Step 04

Butter sandwich exteriors: Spread softened butter evenly on the outer surfaces of both sandwiches.

Step 05

Toast 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, until bread is golden brown and cheese is fully melted.

Step 06

Rest and serve: Remove sandwiches from heat and let rest for 1 minute. Slice diagonally and serve warm.

Tools you'll need

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

Allergy details

Look into every ingredient for allergens and check with a doctor if you're unsure.
  • Contains wheat from bread
  • Contains milk from feta cheese, mozzarella cheese, and butter
  • For gluten-free preparation, substitute with gluten-free bread
  • For lactose intolerance, use lactose-free cheese alternatives

Nutrition details (per serving)

Nutrient details are for reference and aren't a substitute for doctor's advice.
  • Calories: 390
  • Total fat: 22 grams
  • Carbohydrates: 33 grams
  • Proteins: 15 grams