The moment the warm, buttery scent of grilled bread fills the kitchen, I know something special is about to happen. Today, I’m excited to share my take on the Best Pesto Grilled Cheese Sandwich, a delicious twist that elevates the classic comfort food we all adore. Picture this: gooey fresh mozzarella mingling with zesty pesto, crispy bacon, and tangy sun-dried tomatoes, all wrapped in crunchy, golden-brown sourdough.
With only 20 minutes from start to finish, this sandwich is perfect for those busy weeknights when you crave something homemade but don’t want to spend hours in the kitchen. Plus, it’s a crowd-pleaser that even the most discerning palates will rave about! So, grab your frying pan and let’s dive into this delightful recipe that effortlessly blends gourmet flavors with ease. Your taste buds are in for a treat!
Why You'll Love This Best Pesto Grilled Cheese Sandwich
- This recipe comes together in just 20 minutes, making it a fantastic option for busy weeknights.
- The combination of gooey mozzarella, zesty pesto, crispy bacon, and tangy sun-dried tomatoes creates a flavor explosion that will leave your taste buds dancing.
- Its versatility means you can easily customize it to include your favorite ingredients or make it vegetarian for a lighter option.
- Not only is it effortless to prepare, but its golden-brown crust and colorful filling make for a visually appealing dish that will impress your family and friends.
Best Pesto Grilled Cheese Ingredients
For the Sandwich
• Sourdough Bread – 8 slices provide a crunchy, flavorful base that elevates this grilled cheese experience.
• Fresh Mozzarella – 3 (125 g) balls melt beautifully, giving that gooey texture we crave in a grilled cheese.
• Sun-Dried Tomatoes – 8 add a burst of tanginess that complements the pesto perfectly.
• Bacon – 4 slices offer a savory crunch that contrasts wonderfully with the creamy cheese.
• Pesto – 4 tbsp brings a flavorful herbaceous twist that makes this the best pesto grilled cheese you’ll ever have!
• Butter – Use as needed for that rich, golden-brown crust everyone loves on their grilled sandwiches.

How to Make Best Pesto Grilled Cheese Sandwich
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Preheat your pan on medium heat, ensuring it’s hot enough to achieve that perfect golden crust. This will take about 2 minutes; you want it warm to the touch.
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Butter one side of each slice of sourdough bread generously. This is your ticket to a beautifully crisp and flavorful exterior that will make your taste buds smile.
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Layer fresh mozzarella, sun-dried tomatoes, and crispy bacon on the unbuttered side of half the slices. Make sure each bite has a good mix of ingredients, so your flavor profile is both rich and vibrant.
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Spread 4 tablespoons of pesto evenly atop the cheese layer, creating a fragrant, herbaceous taste that will dazzle your senses and bring everything together.
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Top with another slice of bread, ensuring the buttered side is facing out. This will help it brown beautifully while grilling.
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Grill the sandwich until the bread turns golden brown and the cheese is melted, roughly 3-5 minutes per side. Keep an eye on it; you want that irresistible cheese to ooze out.
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Repeat with the remaining ingredients to create additional sandwiches. Each one is an opportunity to perfect your technique and enjoy this delightful meal!
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Slice the sandwiches diagonally and serve hot to maximize the oozy cheese experience. Pair it with a warm bowl of tomato soup for the ultimate comfort dish!
Optional: Add a sprinkle of freshly grated Parmesan on top for an extra flavor boost.
Exact quantities are listed in the recipe card below.
Storage Tips for Best Pesto Grilled Cheese Sandwich
Room Temperature: Store leftover sandwiches wrapped in foil or parchment paper for up to 2 hours at room temperature to retain some crispiness, especially if you’re enjoying them later.
Fridge: Place any uneaten Best Pesto Grilled Cheese Sandwiches in an airtight container for up to 3 days. Reheat carefully to avoid sogginess, and enjoy them warm!
Freezer: For longer storage, wrap individual sandwiches tightly in plastic wrap, followed by aluminum foil. They can be frozen for up to 1 month. Thaw in the fridge before reheating.
Reheating: To reclaim that delightful crunch, reheat frozen or refrigerated sandwiches in a skillet over medium heat for 5-7 minutes per side. Enjoy the gooey goodness all over again!
Make Ahead Options
These Best Pesto Grilled Cheese Sandwiches are perfect for busy cooks looking to save time on weeknights! You can assemble the sandwiches (without grilling them) up to 24 hours in advance. Simply layer the fresh mozzarella, sun-dried tomatoes, bacon, and pesto between the slices of sourdough bread, then wrap each sandwich tightly in plastic wrap and refrigerate. To ensure quality, store the sandwiches flat and press out excess air to prevent sogginess. When you’re ready to enjoy, just heat your pan and grill the sandwiches until golden brown and the cheese is melty, around 3-5 minutes per side. This way, you’ll have a delicious homemade meal in no time, just as satisfying as if you made it fresh!
Pesto Grilled Cheese Variations
Feel free to play with this recipe and tailor it to your taste—your culinary creativity will shine through!
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Gluten-Free: Substitute sourdough with gluten-free bread for a delicious, inclusive sandwich that everyone can enjoy.
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Vegetarian: Skip the bacon and add sliced avocado instead, bringing a creamy texture that harmonizes with the mozzarella.
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Spicy Kick: Incorporate sliced jalapeños or a dash of red pepper flakes to elevate the heat level and create a bold flavor sensation.
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Herbed Cream Cheese: Replace pesto with herb-infused cream cheese for a richer, creamier take that adds depth without the intense garlic flavor.
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Pesto Variations: Try sun-dried tomato pesto or spinach-walnut pesto to explore new flavor combinations that will surprise your senses.
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Add Greens: Fresh spinach or arugula can be layered inside, adding a nutritional boost and a peppery bite that brightens the overall taste.
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Caramelized Onions: Sweet, caramelized onions provide a deep flavor contrast to the savory elements, adding a gourmet touch to your grilled cheese.
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Cheese Blend: Experiment with a mix of cheeses, such as sharp cheddar or gouda, to create a unique melty goodness that brings extra richness to every bite.
What to Serve with Best Pesto Grilled Cheese Sandwich?
What can elevate your meal alongside this gooey delight?
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Tomato Soup: The classic pairing! Creamy, warm tomato soup complements the crunchy sandwich perfectly, bringing comfort and nostalgia to your dining experience.
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Mixed Green Salad: A fresh salad drizzled with a light vinaigrette adds a crisp contrast to the rich, cheesy goodness of the sandwich, balancing the meal beautifully.
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Sweet Potato Fries: Crispy, slightly sweet fries provide a delightful crunch that pairs perfectly with the tangy flavors of pesto and sun-dried tomatoes in the sandwich.
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Pickle Spears: The tanginess of pickles enhances every bite, cutting through the richness of the melted cheese and savory bacon. A zesty addition to the plate!
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Garlic Butter Pasta: Tossed in a light garlic butter sauce, this pasta adds a touch of indulgence, making for a satisfying and flavorful side that feels gourmet.
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Wine: A crisp white wine, like Sauvignon Blanc, offers a refreshing palate cleanser, enhancing the herbaceous notes of the pesto while the cheese shines through.
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Chocolate Chip Cookies: To end the meal on a sweet note, serve warm chocolate chip cookies. Their gooey goodness mirrors the grilled cheese, creating a perfect harmony of sweet and savory.
Let your meal come alive with these delightful pairings!
Chef's Helpful Tips
- For the Best Pesto Grilled Cheese Sandwich, ensure your pan is truly preheated to achieve a golden-brown crust without burning the bread.
- When buttering your sourdough, don’t skimp; a generous layer creates that irresistible crispy exterior we all love.
- Be mindful to distribute your ingredients evenly, as a balanced combination of mozzarella, bacon, and sun-dried tomatoes in each bite elevates the flavor tremendously.
- Grill each side for just 3-5 minutes, keeping a close watch so you catch the moment when the cheese is perfectly melted and the bread is golden.
Best Pesto Grilled Cheese Sandwich Recipe FAQs
How do I choose the best mozzarella for my Best Pesto Grilled Cheese Sandwich?
Look for fresh mozzarella that feels slightly soft and is well-packed. It should be moist but not overly wet, with a smooth texture. If you see it in a brine solution, that’s often a good sign of freshness! Avoid mozzarella with excessive dark spots or a sour smell.
What is the best way to store leftover grilled cheese sandwiches?
For leftover sandwiches, wrap them in foil or parchment paper and store them at room temperature for up to 2 hours, ensuring some crispiness. If you want to save them for longer, transfer to an airtight container and refrigerate for up to 3 days. Reheating carefully in a skillet is the best method to retain that golden-brown crust.
Can I freeze Best Pesto Grilled Cheese Sandwiches?
Absolutely! To freeze, wrap each sandwich tightly in plastic wrap, and then in aluminum foil to prevent freezer burn. These can be stored for up to 1 month. When you’re ready to enjoy one, simply thaw in the fridge overnight, then reheat in a skillet over medium heat for about 5-7 minutes per side until warmed through and crispy.
What should I do if my grilled cheese isn’t browning properly?
If your sandwich isn’t browning, your pan may not be hot enough, or you might be using too low heat. Make sure to preheat your pan for about 2 minutes before placing the sandwiches on it. If you see them browning unevenly, you can also cover the pan with a lid for the first couple of minutes to create a mini-oven effect that helps melt the cheese thoroughly.
Are there any dietary considerations I should keep in mind for this recipe?
Great question! If you or someone you’re serving has allergies, be aware that this recipe contains dairy (cheese and butter) and pork (bacon). For a vegetarian option, simply omit the bacon and consider adding extra veggies like spinach or bell peppers. Make sure your pesto is nut-free if nut allergies are a concern!

Best Pesto Grilled Cheese Sandwich
Ingredients
Equipment
Method
- Preheat your pan on medium heat for about 2 minutes.
- Butter one side of each slice of sourdough bread generously.
- Layer fresh mozzarella, sun-dried tomatoes, and crispy bacon on the unbuttered side of half the slices.
- Spread 4 tablespoons of pesto evenly atop the cheese layer.
- Top with another slice of bread, ensuring the buttered side is facing out.
- Grill the sandwich until the bread is golden brown and cheese is melted, roughly 3-5 minutes per side.
- Repeat with remaining ingredients to create additional sandwiches.
- Slice the sandwiches diagonally and serve hot.

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