There’s nothing quite like the crispy, golden-brown crunch of a perfectly grilled cheese sandwich. Imagine biting into a slice of sourdough bread, its edges toasted to perfection, and discovering the warm, gooey center packed with mozzarella and the fragrant burst of fresh basil pesto. That’s the delicious experience waiting for you with my Sourdough Pesto Grilled Cheese.
This recipe is not just another sandwich; it’s a culinary treat that transforms a classic comfort food into something extraordinary in under 15 minutes. Whether you’re looking to spice up a quick lunch or impress guests with a delightful dinner option, this customizable grilled cheese comes to the rescue. With the option to add sun-dried tomatoes or crispy bacon, you can create your perfect combination. So let’s dive into this easy yet mouthwatering recipe that proves gourmet doesn’t have to mean complicated!
Why is Sourdough Pesto Grilled Cheese Irresistible?
Delicious Comfort: This Sourdough Pesto Grilled Cheese combines nostalgia with gourmet flair, taking the beloved grilled cheese to a new level.
Quick Preparation: In just 15 minutes, you can whip up this sandwich, making it perfect for busy days or spontaneous cravings.
Customizable Delight: Add sun-dried tomatoes or crispy bacon for an extra twist, ensuring it caters to your taste preferences.
Melty Goodness: The blend of creamy mozzarella with fragrant basil pesto creates a scrumptious experience you won’t forget.
Perfect Pairing: Team it with a side of classic tomato soup or a light salad for a well-rounded meal that satisfies.
Crowd-Pleasing Dish: Whether serving family or friends, this sandwich is sure to impress with its rich flavors and appealing textures.
Sourdough Pesto Grilled Cheese Ingredients
For the Sandwich
• Sourdough Bread – Look for fresh, thick-sliced loaves (about ½ inch) for the best structure and crispiness.
• Mozzarella Cheese – Pat dry before use to avoid sogginess and ensure that melty goodness.
• Fresh Basil Pesto – Adjust the quantity to your taste for that herbaceous kick in your Sourdough Pesto Grilled Cheese.
• Sun-Dried Tomatoes – Optional but adds a delightful sweetness and tang to your sandwich.
• Cooked Bacon – Provides a savory punch; can be omitted for a vegetarian option.
• Butter – Generously butter the bread to achieve that irresistible crispy, golden-brown finish.
How to Make Sourdough Pesto Grilled Cheese
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Preheat your skillet over medium-low heat to get it nice and hot, which helps achieve that golden-brown crust.
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Butter one side of each slice of sourdough generously, ensuring every bite is rich and flavorful.
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Place one slice of bread, butter-side down, in the pan, creating a lovely base for your sandwich.
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Layer 3-4 slices of mozzarella on the bread, followed by a heaping tablespoon of basil pesto for that aromatic burst of flavor.
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Top with sun-dried tomatoes and bacon (if using), then sprinkle on another layer of mozzarella for extra creaminess.
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Add the second slice of sourdough on top, butter-side up, and gently press down to encourage melting.
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Cook until the bottom is golden brown and cheese is melting, about 3-4 minutes.
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Flip with a spatula and, still cooking until the second side is crispy and cheese is fully melted, for about another 3-4 minutes.
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Remove from heat and let your sandwich rest for a minute before slicing and serving, making that melty goodness even more enticing.
Optional: Serve with a side of classic tomato soup for a delightful pairing.
Exact quantities are listed in the recipe card below.

Expert Tips for Sourdough Pesto Grilled Cheese
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Preheat Skill: Make sure your skillet is well-preheated to medium-low. This ensures even cooking and crispy bread without burning.
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Moisture Control: Pat your mozzarella dry before using it. This prevents your Sourdough Pesto Grilled Cheese from becoming soggy and makes for a perfect melt.
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Butter Generously: Don’t be shy with the butter—spread a generous layer on each slice. This helps achieve that irresistible crispy, golden-brown finish.
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Layering Technique: For a balanced flavor, use even layers of mozzarella and pesto. It allows all ingredients to shine through with each bite.
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Customize Wisely: Feel free to add in sun-dried tomatoes or bacon, but remember to adjust the pesto quantity based on your preferences to keep flavors balanced.
What to Serve with Sourdough Pesto Grilled Cheese?
Looking to create a delightful meal around your warm, crispy sandwich? Here are some perfect pairings that will elevate your dining experience.
- Classic Tomato Soup: The ultimate companion, this creamy soup contrasts perfectly with the crunchy grilled cheese, creating a comforting duo.
- Light Arugula Salad: A refreshing salad with a sprinkle of lemon juice and olive oil adds brightness, cutting through the richness of the sandwich.
- Sweet Potato Fries: Crisp, slightly sweet, and salty, these fries offer a fun alternative to traditional fries and are a family favorite.
- Chilled Cucumber Salad: A cool and crunchy salad with a hint of dill complements the warm flavors of the grilled cheese, adding a delightful freshness.
- Sparkling Lemonade: Refreshing and bubbly, this drink enhances the flavors of the sandwich while adding a zesty touch to the meal.
- Pickles or Pickled Vegetables: The tangy crunch of pickles serves as a perfect contrast to the melted cheese and adds a burst of flavor with each bite.
- Roasted Vegetables: Seasonal veggies drizzled with olive oil and herbs add a savory note and extra nutrition to round out your meal.
- Fruit Salad: A light and sweet side of seasonal fruits brings brightness to your plate and balances the richness of the grilled cheese.
- Chips and Salsa: A crunchy, zesty side will excite your taste buds while keeping the meal casual and fun.
Make Ahead Options
These Sourdough Pesto Grilled Cheese sandwiches are perfect for busy home cooks looking to save time during weeknight meals! You can prepare the sandwich components—sliced sourdough, pre-patted mozzarella, and basil pesto—up to 24 hours in advance, refrigerating them separately to maintain freshness and prevent sogginess. Additionally, you can also assemble the sandwiches without grilling, covering them tightly in plastic wrap, and storing them in the fridge. When you’re ready to enjoy your grilled cheese, simply grill the assembled sandwich as directed and savor that gooey, melty goodness just like it was done fresh! This prep-ahead method not only saves you time but also ensures a quality meal with minimal effort when hunger strikes.
Sourdough Pesto Grilled Cheese Variations
Feel free to put your personal spin on this delightful recipe that brings comforting flavors to life.
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Cheese Swap: Try swapping mozzarella for sharp cheddar or creamy provolone for a new taste sensation.
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Veggie Boost: Add fresh spinach or roasted bell peppers for a nutritious and colorful upgrade.
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Extra Crunch: Incorporate sliced avocado for creaminess or replace bacon with crunchy chickpeas for a satisfying texture.
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Herb Infusion: Mix in a sprinkle of fresh herbs like thyme or oregano either in the pesto or directly on the sandwich for added depth.
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Spicy Twist: If you’re craving heat, add a few slices of jalapeños or a drizzle of hot sauce with the pesto.
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Sweet & Savory: Introduce a layer of fig jam or apple slices for a delicious contrast to the savory flavors.
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Nutty Flavor: Spread a thin layer of hazelnut or walnut pesto instead of basil for a unique earthy note.
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Gluten-Free Option: Use gluten-free bread to enjoy this sandwich without compromising on taste.
Storage Tips for Sourdough Pesto Grilled Cheese
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Room Temperature: Enjoy your Sourdough Pesto Grilled Cheese immediately for the best taste and texture. If you need to store it, keep it at room temperature for no more than 2 hours.
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Fridge: Store leftover sandwiches in an airtight container for up to 3 days. This will help maintain their deliciousness while preventing them from drying out.
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Freezer: For longer storage, wrap the sandwiches tightly in plastic wrap or foil and freeze for up to 1 month. Thaw in the fridge before reheating to preserve texture.
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Reheating: To reheat, place the sandwich back in a skillet over medium-low heat. This will restore its crispy exterior and melty cheese without making it soggy.

Sourdough Pesto Grilled Cheese Recipe FAQs
What type of sourdough bread should I use for the best flavor?
Look for fresh, thick-sliced loaves of sourdough, ideally about ½ inch in thickness. This will provide both the structure and crispy exterior crucial for a delightful Sourdough Pesto Grilled Cheese.
How should I store leftovers of the Sourdough Pesto Grilled Cheese?
Store any leftover sandwiches in an airtight container at room temperature for no more than 2 hours. If you’re keeping them longer, transfer to the fridge, where they will last up to 3 days. Just make sure to take them out about 15 minutes before reheating for the best results!
Can I freeze my Sourdough Pesto Grilled Cheese?
Absolutely! To freeze, wrap the sandwiches tightly in plastic wrap or foil, ensuring no air pockets. They can be frozen for up to 1 month. For reheating, thaw them in the refrigerator overnight, then gently reheat in a skillet over medium-low heat to restore that crispy texture.
How can I avoid sogginess in my Sourdough Pesto Grilled Cheese?
To prevent sogginess, pat your mozzarella dry before using it in the sandwich, and don’t skimp on the butter but avoid over-buttering the outside as that can lead to excess moisture. Making sure to preheat your skillet properly is also essential because it ensures even cooking and crispiness.
Can I customize my Sourdough Pesto Grilled Cheese for dietary restrictions?
Certainly! This recipe is incredibly adaptable. You can make it vegetarian by omitting the bacon and adding more veggies like spinach or roasted bell peppers. If you have a cheese allergy, consider using dairy-free cheese alternatives that melt well, such as almond or cashew-based cheeses.

Savory Sourdough Pesto Grilled Cheese You Can't Resist
Ingredients
Equipment
Method
- Preheat your skillet over medium-low heat.
- Butter one side of each slice of sourdough generously.
- Place one slice of bread, butter-side down, in the pan.
- Layer 3-4 slices of mozzarella on the bread, followed by a heaping tablespoon of basil pesto.
- Top with sun-dried tomatoes and bacon (if using), then sprinkle on another layer of mozzarella.
- Add the second slice of sourdough on top, butter-side up, and gently press down to encourage melting.
- Cook until the bottom is golden brown and cheese is melting, about 3-4 minutes.
- Flip with a spatula and cook until the second side is crispy and cheese is fully melted, for about another 3-4 minutes.
- Remove from heat and let your sandwich rest for a minute before slicing and serving.





