Feta & Spinach Stuffed Grilled Cheese

Featured in: Weekend Slow-Rest Recipes

Transform your classic grilled cheese into a gourmet sandwich by combining sautéed spinach with crumbled feta and mozzarella between thick slices of country or sourdough bread. The key is using softened butter on the outside and cooking over medium-low heat, allowing the bread to achieve a beautiful golden crust while the cheese melts into creamy perfection. This vegetarian sandwich comes together in just 20 minutes and serves 2, making it ideal for a quick lunch or light dinner.

Updated on Tue, 20 Jan 2026 15:51:00 GMT
A close-up of golden-brown Feta & Spinach Stuffed Grilled Cheese, oozing melted feta and spinach from thick sourdough slices.  Save
A close-up of golden-brown Feta & Spinach Stuffed Grilled Cheese, oozing melted feta and spinach from thick sourdough slices. | dewhearth.com

The smell of garlic hitting warm olive oil still makes me pause whatever I am doing and drift toward the kitchen. I created this sandwich on a rainy Tuesday when a craving for grilled cheese collided with a bag of spinach that needed using and a forgotten container of feta in the back of the fridge. Something magical happened when that salty crumbly cheese met the garlicky greens between two slices of sourdough. Now it has become my go-to when I want something that feels indulgent but still has something green involved.

I served these to my sister once when she was having a particularly rough week at work. She took one bite and actually stopped talking mid sentence, eyes wide, and proceeded to eat the entire thing without coming up for air. Sometimes food just hits different when you need comfort most.

Ingredients

  • Fresh spinach: The vibrant green base that wilts down beautifully and holds all that garlicky flavor
  • Feta cheese: This salty crumbly cheese is the star that transforms ordinary grilled cheese into something special
  • Mozzarella: Optional but recommended for that irresistible cheese pull factor
  • Thick cut bread: Country style or sourdough gives you that sturdy foundation needed to hold everything together
  • Garlic: Minced fresh garlic bloomed in olive oil creates the aromatic foundation for the filling

Instructions

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Prep the garlicky spinach:
Warm olive oil in a skillet over medium heat and add minced garlic cooking for thirty seconds until fragrant then toss in chopped spinach stirring until wilted about two minutes
Mix the filling:
Combine the cooked spinach with crumbled feta and shredded mozzarella in a bowl mixing until everything is well incorporated
Assemble the sandwiches:
Layer the spinach cheese mixture onto two bread slices and top with remaining slices creating two complete sandwiches
Butter and toast:
Butter the outside of each sandwich then cook in a skillet over medium low heat for three to four minutes per side until golden brown and the cheese has melted
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Rinse produce, fill pots, and clean cookware easily with flexible spray options for everyday cooking tasks.
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Two halves of a Feta & Spinach Stuffed Grilled Cheese rest on a white plate, revealing the vibrant green spinach and white cheese.  Save
Two halves of a Feta & Spinach Stuffed Grilled Cheese rest on a white plate, revealing the vibrant green spinach and white cheese. | dewhearth.com

This recipe has saved many lazy dinners when I wanted something more than plain toast but did not have the energy for anything elaborate. It is funny how the simplest combinations often end up being the ones we crave most.

Bread Choices That Work Best

I have found that sourdough brings a subtle tang that plays beautifully with feta while country white offers a more neutral canvas letting the filling shine. Whatever you choose look for slices that are at least half an inch thick because thin bread will turn soggy under all that filling.

Make It Your Way

Sun dried tomatoes or roasted red peppers folded into the spinach mixture add this wonderful sweetness that balances the salty feta perfectly. A pinch of red pepper flakes in the spinach while it sautés gives just enough warmth to make things interesting without overwhelming the delicate flavors.

Perfect Pairings

A bowl of tomato soup alongside this sandwich turns lunch into something that feels like a hug from the inside out. The acidity of the soup cuts through all that rich cheesy goodness in the most satisfying way.

  • A crisp green salad with vinaigrette helps balance the richness
  • Soup lovers will swoon over classic tomato basil soup as a dunking companion
  • For a lighter meal serve with some fresh cucumber and tomato slices

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The buttery crust of a Feta & Spinach Stuffed Grilled Cheese toasted perfectly, with fresh spinach and tangy feta peeking out. Save
The buttery crust of a Feta & Spinach Stuffed Grilled Cheese toasted perfectly, with fresh spinach and tangy feta peeking out. | dewhearth.com

Hope this recipe finds you on a day when you need exactly this kind of comfort in your life.

Recipe FAQs

Can I make this ahead of time?

You can prepare the spinach-feta filling up to 24 hours in advance and store it in an airtight container in the refrigerator. Assemble and cook the sandwiches fresh just before serving for the best texture and melting results.

What bread works best?

Thick-cut country-style, sourdough, or challah bread work beautifully. Avoid thin sandwich bread, which may fall apart. Whole wheat or multigrain varieties add extra fiber and nuttiness to complement the feta.

How do I prevent the cheese from leaking out?

Distribute the filling evenly and avoid overstuffing. Press lightly while cooking and maintain medium-low heat so the outside browns before the inside gets too hot. Let the sandwich rest for 1 minute after cooking before slicing.

Can I add other vegetables to the filling?

Absolutely. Sun-dried tomatoes, roasted red peppers, caramelized onions, or sautéed mushrooms are excellent additions. Ensure any vegetables are cooked and excess moisture is removed before mixing with the cheese.

What should I serve alongside this sandwich?

Tomato soup is the classic pairing and complements the Mediterranean flavors beautifully. A crisp arugula salad, roasted vegetable medley, or simple green salad with vinaigrette also work wonderfully as accompaniments.

How do I make this dairy-free?

Use dairy-free butter and lactose-free or plant-based cheese alternatives. Nutritional yeast mixed with the sautéed spinach can add umami depth. Cashew cream also works as a melting substitute, though results vary by brand.

Feta & Spinach Stuffed Grilled Cheese

Thick slices of country bread filled with garlicky spinach, tangy feta, and melted cheese. Toasted to golden perfection.

Prep Time
10 minutes
Bake Time
10 minutes
Time Needed
20 minutes
Created by Claire Martin

Recipe Category Weekend Slow-Rest Recipes

Skill Level Easy

Cuisine Type 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 Pinch of salt

Directions

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. Transfer to a plate and allow to cool slightly.

Step 02

Prepare cheese mixture: In a mixing bowl, combine cooled sautéed spinach with crumbled feta and shredded mozzarella. Mix thoroughly until evenly distributed.

Step 03

Assemble sandwiches: Lay out all bread slices. Distribute spinach-feta mixture evenly over 2 slices, then top each with remaining bread slices to create 2 complete sandwiches.

Step 04

Butter sandwich exteriors: Spread softened butter evenly on the outside surfaces of each assembled sandwich.

Step 05

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

Step 06

Rest and serve: Remove sandwiches from heat, let rest for 1 minute, then slice diagonally and serve immediately while warm.

Tools Needed

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

Allergy Details

Review each item for allergens and see a medical expert 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 (for each portion)

Details are informational only and shouldn't replace health advice.
  • Energy: 390
  • Fats: 22 g
  • Carbohydrates: 33 g
  • Proteins: 15 g