Sourdough Pesto Grilled Cheese

Featured in: Warm Breakfast Recipes

This elevated grilled cheese combines thick-cut sourdough bread with aromatic basil pesto and three melty cheeses—mozzarella, fontina, and sharp cheddar. Simply butter the bread, spread pesto on the interior, layer with cheese, and grill until golden and crispy. The result is a restaurant-quality sandwich that comes together in just 20 minutes.

Updated on Tue, 20 Jan 2026 13:01:00 GMT
Golden sourdough slices, thick and crusty, are grilled until crisp, stuffed with melted mozzarella, fontina, and sharp white cheddar, and layered with fragrant basil pesto for a gourmet twist on the classic comfort food. Save to Pinterest
Golden sourdough slices, thick and crusty, are grilled until crisp, stuffed with melted mozzarella, fontina, and sharp white cheddar, and layered with fragrant basil pesto for a gourmet twist on the classic comfort food. | savoringli.com

The rain was coming down hard last Tuesday when I realized I hadn't eaten anything substantial all day. I'd made a batch of pesto the night before, my kitchen still smelling faintly of garlic and basil, and suddenly craving something warm and comforting seemed like the only logical response to a gray afternoon.

My roommate walked in right as I was flipping the first sandwich, the butter hitting the hot pan making that signature sizzle that draws people into kitchens like a moth to flame. She ended up making two for herself after trying a single bite.

Ingredients

  • Thick-cut sourdough bread: The tangy flavor and sturdy structure of sourdough makes it the perfect vehicle for hearty fillings without turning soggy, plus it develops those gorgeous golden grill marks that make everything taste better
  • Shredded mozzarella cheese: Mozzarella provides that classic stretchy melt factor and mild creaminess that balances the stronger flavors in the other cheeses
  • Shredded fontina cheese: Fontina adds this incredible nutty richness that takes the flavor profile way beyond ordinary grilled cheese territory
  • Shredded sharp white cheddar: The sharp cheddar cuts through all the creaminess with just enough tang to keep every bite interesting
  • Basil pesto: Homemade pesto brings fresh aromatic intensity that transforms the whole sandwich into something that feels way more sophisticated than it actually is
  • Unsalted butter: Softened butter spreads evenly across the bread creating that golden crispy exterior we all dream about in grilled cheese

Instructions

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Prep your bread slices:
Lay out all four slices and spread softened butter on one side of each, getting right to the edges for maximum crispiness
Spread the pesto:
Flip the bread over and spread a generous tablespoon of basil pesto on the unbuttered side of two slices
Layer the cheeses:
Divide the mozzarella fontina and cheddar evenly between the two pesto covered slices making sure the cheese reaches the corners
Assemble the sandwiches:
Top each with remaining bread slices buttered side facing out so the butter makes direct contact with the pan
Get your pan ready:
Heat a large nonstick skillet over medium heat until a drop of water sizzles across the surface
Grill to perfection:
Cook sandwiches for 3 to 4 minutes per side pressing gently with your spatula until golden brown and crisp with cheese completely melted
Rest and serve:
Let them cool for just one minute before slicing so the cheese sets slightly and doesn't ooze out everywhere
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| savoringli.com

This recipe became my go-to when I realized a truly excellent grilled cheese could fix almost any bad day or mood. Something about the combination of warm crispy bread and melty cheese feels like being hugged from the inside.

Getting That Perfect Golden Crust

I've learned that patience matters more than anything when it comes to achieving that ideal golden brown exterior. Let the bread develop a deep color undisturbed before attempting to flip because that's when the real magic happens between butter and heat.

Cheese Blending Secrets

The three cheese combination isn't just for show because each variety brings something different to the table. Mozzarella handles the melting duties fontina contributes depth and cheddar provides the sharp finish that keeps you coming back for another bite.

Serving Ideas That Work

A simple side salad with bright vinaigrette cuts through all that richness beautifully while tomato soup turns it into the ultimate comfort meal. The sandwich holds up well enough to pack for lunch too though the texture is definitely at its best straight from the pan.

  • Letting the sandwiches rest for that one minute before slicing makes a huge difference in presentation
  • A sharp serrated knife cuts through without dragging all the cheese out
  • Leftovers can be reheated in a 350°F oven for about 8 minutes to restore the crispy texture
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A vegetarian grilled cheese features golden, buttery sourdough bread filled with three melty cheeses and vibrant basil pesto, perfect for serving alongside a hot bowl of tomato soup on a cozy weeknight. Save to Pinterest
A vegetarian grilled cheese features golden, buttery sourdough bread filled with three melty cheeses and vibrant basil pesto, perfect for serving alongside a hot bowl of tomato soup on a cozy weeknight. | savoringli.com

There's something deeply satisfying about taking that first bite and hearing the crunch of perfectly grilled bread giving way to all that melty goodness inside. Simple pleasures often turn out to be the best ones.

Recipe Questions & Answers

Can I make the pesto from scratch?

Absolutely. Blend fresh basil, garlic, pine nuts, parmesan, and olive oil in a food processor until your desired consistency is reached. Homemade pesto will give you more control over flavors and freshness.

What cheese combinations work best?

The three-cheese blend of mozzarella, fontina, and sharp cheddar creates excellent melting and flavor balance. You can substitute with Gruyère, provolone, or gouda depending on your taste preferences and what you have available.

How do I prevent the bread from burning?

Use medium heat and cook for 3–4 minutes per side. Avoid turning the temperature too high, which can brown the exterior before the cheese melts inside. A nonstick skillet or griddle helps distribute heat evenly.

Can I add vegetables to this?

Yes. Thin tomato slices, fresh spinach, or arugula pair beautifully with the pesto and cheese. Add these between the cheese and top bread slice before grilling for a heartier sandwich.

Is there a vegan version?

You can make this vegan by using plant-based butter, dairy-free cheese alternatives, and nut-free pesto made with seeds instead of pine nuts. Cashew-based pesto is also a delicious vegan option.

What pairs well with this sandwich?

Serve alongside a crisp side salad, tomato soup, or minestrone for a complete meal. The acidity and freshness of these sides complement the rich, cheesy sandwich perfectly.

Sourdough Pesto Grilled Cheese

Rich and flavorful grilled cheese featuring thick sourdough, aromatic basil pesto, and a blend of melty cheeses.

Prep Time
10 minutes
Time to Cook
10 minutes
Overall Time
20 minutes
Created by savoringli Lila Anderson


Skill Level Easy

Cuisine Type American, Italian-inspired

Makes 2 Serving Size

Diet Details Vegetarian-Friendly

Ingredient List

Bread

01 4 slices thick-cut sourdough bread

Cheese

01 1/2 cup shredded mozzarella cheese
02 1/2 cup shredded fontina cheese
03 1/2 cup shredded sharp white cheddar cheese

Spreads & Condiments

01 3 tablespoons basil pesto
02 2 tablespoons unsalted butter, softened

Step-by-Step Instructions

Step 01

Prepare the bread: Lay out the sourdough slices and spread 1/2 tablespoon of butter on one side of each slice.

Step 02

Apply pesto: Flip the bread over and spread approximately 1 tablespoon of basil pesto on the unbuttered side of two slices.

Step 03

Layer cheese: Evenly divide and distribute the mozzarella, fontina, and cheddar over the pesto-covered slices.

Step 04

Assemble sandwiches: Top with the remaining bread slices with the buttered side facing outward.

Step 05

Heat the skillet: Heat a large nonstick skillet or griddle over medium heat.

Step 06

Grill the sandwiches: Place the sandwiches in the skillet and cook for 3 to 4 minutes per side, gently pressing with a spatula until the bread is golden and crisp and the cheese is fully melted.

Step 07

Finish and serve: Remove from the pan, let cool for 1 minute, then slice diagonally and serve warm.

Equipment Needed

  • Nonstick skillet or griddle
  • Spatula
  • Bread knife
  • Cheese grater

Allergy Info

Review every ingredient for allergens. If unsure, check with a healthcare provider.
  • Wheat from sourdough bread
  • Milk from cheese and butter
  • Tree nuts if pesto contains pine nuts

Nutrition Info (per portion)

Serves for general info – not a replacement for professional advice.
  • Calorie Count: 480
  • Fats: 29 g
  • Carbohydrates: 36 g
  • Proteins: 19 g