Smoky Grilled Zucchini Caprese Melt

Grilled Zucchini Caprese Sandwiches with Pesto Mayo – a perfect summer sandwich for family gatherings.

There’s a special kind of comfort that comes with living close to family. For me, that means being within a mere five minutes of my parents, my sister, and her husband. To describe this arrangement as simply “awesome” would be a profound understatement. It’s a cherished setup that allows us to come together at least once a week for our beloved family dinners, often on Fridays, for what we affectionately call “Friday Parties.” These gatherings are a highlight of our week, filled with laughter, lively conversation, a friendly game of cornhole, good music setting the mood, and the occasional celebratory cocktail. But above all, they are about one thing: food. Delicious, heartwarming food that brings everyone to the table and creates lasting memories.

However, finding a meal that genuinely pleases every palate and accommodates various dietary preferences can often feel like a culinary puzzle. I, personally, am quite adventurous and eat just about everything. My mom, on the other hand, follows a vegan diet, while my sister is vegetarian and abstains from meat. Our husbands are avid meat-eaters, but they’re always gracious and happy to enjoy a meatless dinner if it means everyone can share the same plate. This dynamic often leads us to classic, adaptable choices like burgers, where we can easily substitute veggie patties for my mom and sister, or pizzas, with separate veggie and cheese-free options for them. Tacos, too, are a hit, with an abundance of grilled vegetables for the plant-based members of our crew. So, when I stumble upon a recipe that genuinely excites and satisfies every single person in my diverse family, it truly feels like striking gold – a culinary jackpot!

Closeup of a freshly prepared Grilled Zucchini Caprese Sandwich with vibrant layers of tomato and mozzarella.

This Grilled Zucchini Caprese Sandwich is precisely one of those miraculous finds, offering something delightful for everyone. The star of this vegetarian sandwich is undoubtedly the grilled zucchini. When perfectly cooked, the zucchini slices develop a wonderful, slightly smoky flavor and a firm, “meaty” texture that is surprisingly satisfying. Even the most ardent meat lovers won’t miss a beat. These flavorful zucchini slices are then layered generously with thick, juicy slices of ripe tomato and creamy, fresh mozzarella cheese. For my vegan mom, a simple yet delicious swap of mashed avocado in place of the mozzarella ensures she can enjoy the full experience, leaving more of that glorious cheese for the rest of us! This thoughtful adaptation ensures that no one feels left out, making it a truly inclusive meal for our family gatherings.

Grilled bread with olive oil, ready to be assembled into a delicious Caprese sandwich.

The foundation of any great sandwich is its bread, and this Grilled Zucchini Caprese Sandwich is no exception. For the ultimate experience, choose a quality sandwich roll that can stand up to the hearty fillings and the grilling process. I’ve found a particular fondness for the “rustica” rolls from Trader Joe’s; their texture is reminiscent of a rustic focaccia bread, but without the added herbs, allowing the fresh Caprese flavors to shine. You might also consider ciabatta, sourdough, or even a robust artisan loaf. The key is to select a bread that offers a delightful chew and a good crust. Before grilling, give the sliced bread a quick, generous drizzle of good quality olive oil. This simple step is crucial. The olive oil prevents the bread from drying out on the grill, infuses it with a rich flavor, and helps achieve those coveted, beautiful charred marks. These marks aren’t just for aesthetics; they add an incredible smoky depth and a satisfying crispness to the bread, elevating the entire sandwich experience from good to absolutely outstanding. Grill each side until golden and perfectly toasted, with those distinct grill lines that signify perfection.

The star of the show: a bowl of creamy, herbaceous Pesto Mayo for the Caprese sandwich.

While the grilled zucchini and fresh Caprese components are undoubtedly delicious, the true secret weapon and, hands down, the absolute best part of this Grilled Zucchini Caprese Sandwich is the homemade pesto mayo. Oh, my goodness, it is absolutely de-lic-ious! This creamy, vibrant spread brings all the flavors together in a harmonious symphony, adding a burst of herbaceous freshness and a subtle tang that perfectly complements the savory zucchini, sweet tomatoes, and mild mozzarella. Don’t be shy with it; go ahead and slather it generously on both sides of your sandwich roll – in this case, more is definitely better! The rich, garlicky, basil-infused notes of the pesto combine with the smooth, tangy mayonnaise to create a condiment that’s addictive. I always make sure to double or even triple the recipe when preparing it, keeping the extra in the fridge. This ensures I have a ready supply to elevate other meals throughout the week. It’s fantastic spread on other sandwiches, makes an incredible topping for burgers, or can even serve as a decadent dip for raw vegetables, crackers, or, as we’ll discuss, some crispy potato wedges. Its versatility and irresistible flavor make it a staple in my kitchen once you try it. You might even find yourself making it just to enjoy by the spoonful!

A beautifully assembled Grilled Zucchini Caprese Sandwich, ready to be enjoyed.

To truly complete this Mediterranean-inspired meal, there’s no better accompaniment than my Crispy Oven Baked Potato Wedges. Honestly, these are hands down the best potato wedges I have ever tasted. Unlike their fried counterparts, these wedges are baked to perfection, offering a healthier yet equally satisfying alternative. The result is a perfect contrast: wonderfully crispy on the outside, giving way to a tender, fluffy interior. Every person I’ve made them for absolutely loves them, raving about their texture and flavor. The best part? They provide the ideal vessel for dipping into that glorious pesto mayo. The combination of the warm, seasoned potato and the cool, creamy pesto mayo is simply divine, creating a dynamic duo that makes the entire meal feel complete and utterly satisfying. Serve a generous pile of these golden wedges alongside your Caprese sandwich, and prepare for a chorus of compliments from your family and friends. This pairing transforms a simple sandwich into a memorable feast, perfect for a casual weeknight dinner or a special weekend gathering with loved ones.

This Grilled Zucchini Caprese Sandwich is more than just a recipe; it’s a testament to how simple, fresh ingredients, thoughtfully prepared, can bring immense joy and satisfy a wide range of tastes. From the savory grilled zucchini that mimics a hearty meat texture, to the fresh sweetness of ripe tomatoes, the creamy richness of mozzarella, and the unforgettable zest of the pesto mayo, every component plays a crucial role in creating a balanced and flavorful experience. It’s a versatile dish, easily adaptable for various dietary needs, making it a go-to option for family meals, potlucks, or even a delightful packed lunch. The ease of preparation, combined with its impressive flavors and broad appeal, makes this sandwich a true culinary winner. Whether you’re grilling outdoors on a warm summer evening or using an indoor grill pan, this recipe promises a vibrant, satisfying, and utterly delicious meal that your whole family will cherish. Get ready to add this incredible vegetarian sandwich to your regular rotation!

Grilled Zucchini Caprese Sandwich

Grilled Zucchini Caprese Sandwich

Servings: 6 people
Prep Time: 5 mins
Cook Time: 10 mins
Total Time: 15 mins
This vegetarian sandwich features grilled zucchini slices served with fresh tomato and mozzarella. It’s truly enhanced with grilled focaccia-style bread smothered in a delicious pesto mayonnaise. You won’t even miss the meat!
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Ingredients

  • 4 zucchinis, sliced lengthwise ¼” thick
  • 4 tomatoes, sliced ¼” thick
  • 2 pounds mozzarella cheese, pre-sliced logs are convenient!
  • 6 sandwich rolls, cut in half
  • olive oil
  • salt & pepper
  • ½ cup mayonnaise
  • ½ cup pesto

Instructions

  • In a small mixing bowl, combine the mayonnaise and pesto to make the delicious pesto mayonnaise. Stir until well combined, cover, and refrigerate until ready to use. It will keep fresh for up to 1 week.
  • Preheat your grill (or an indoor grill pan) over medium heat. Lightly drizzle the cut sides of the sliced sandwich bread with olive oil. Grill the bread, cut side down, for approximately 2 minutes, until it’s lightly toasted and boasts appealing grill marks. Remove from heat and set aside on a plate.
  • In a medium-sized mixing bowl, toss the sliced zucchini with 2 tablespoons of olive oil, ensuring they are evenly coated. Season generously with salt and pepper. Cook the zucchini on the grill for 1-2 minutes per side, until they are just crisp-tender with visible grill marks. Remove from heat and set aside.
  • Assemble the sandwiches: Spread a generous amount of the prepared pesto mayo on both halves of the grilled bread. Layer each sandwich with 3-4 slices of the grilled zucchini, followed by 3-4 slices of fresh tomato, and finally 3-4 slices of mozzarella cheese. Serve immediately and enjoy!

Notes

These sandwiches can also be transformed into a delicious melt! If you prefer a melt sandwich, turn your broiler on high. Place the mozzarella cheese on the dry top half of the sandwich bread and broil for 2-3 minutes until the cheese is beautifully melted and bubbly. Then, assemble the rest of the sandwich according to the directions.
If you’re serving these with potato wedges or fries, consider doubling the pesto mayo recipe. You can serve the extra on the side as a fantastic dipping sauce for your crispy wedges.
Cuisine: Italian
Course: Main Course
Author: Natalie
Calories: 585, Total Carbs: 32g, Protein: 54.6g, Fat: 26.7g, Fiber: 4.9g, Net Carbs: 27g
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