Lemon-Parmesan Zucchini Relish Crostini

Bright, zesty, and packed with fresh flavors, this Lemon-Parmesan Zucchini Relish Crostini is the perfect appetizer to impress your guests or enjoy a light snack. Combining the crispness of diced zucchini with the tang of lemon, the savory depth of Parmesan cheese, and the aromatic punch of fresh basil, every bite bursts with delightful contrasts. Whether you’re hosting a summer gathering or simply craving something fresh and easy, this crostini recipe is your new go-to.

Why This Recipe Is a Must-Try

What makes this Lemon-Parmesan Zucchini Relish Crostini stand out is its simplicity and versatility. The finely diced zucchini, lightly sautéed with olive oil and garlic powder, creates a tender yet textural relish that perfectly complements the crunchy French baguette slices. The lemon juice brightens the dish, making it wonderfully refreshing, while the Parmesan adds that irresistible savory umami kick.

If you’re a fan of easy-to-make yet elegant appetizers, this recipe is for you. It’s quick enough for a weeknight snack but sophisticated enough for entertaining. Plus, it’s a fantastic way to use up that medium zucchini sitting in your fridge. For those who love exploring fresh, veggie-forward dishes, this crisp crostini might remind you of other delightful bites like the Honey Roasted Peach Crostini With Thyme, which also combines sweet, savory, and herbal notes beautifully.

Ingredients

• 1 medium zucchini, finely diced
• 1 tablespoon olive oil
• 1 teaspoon lemon juice (freshly squeezed)
• 1/4 cup grated Parmesan cheese
• 1/4 teaspoon garlic powder
• Salt and pepper to taste
• 1 French baguette, sliced into 1/2-inch thick pieces
• 1/4 cup fresh basil leaves, chopped

How To Make Lemon-Parmesan Zucchini Relish Crostini

Step 1: Prepare the Zucchini

Start by washing and finely dicing your medium zucchini. The smaller the dice, the better the relish will cling to the crostini, creating a delightful texture contrast.

Step 2: Sauté the Zucchini

Heat 1 tablespoon of olive oil in a skillet over medium heat. Add the diced zucchini and sprinkle in the garlic powder, salt, and pepper. Cook for about 3 to 4 minutes, stirring occasionally, until the zucchini softens slightly but still retains a bit of crunch. Remove from heat and let it cool slightly.

Step 3: Add Lemon and Parmesan

Once the zucchini has cooled, transfer it to a small mixing bowl. Add 1 teaspoon of freshly squeezed lemon juice and 1/4 cup of grated Parmesan cheese. Stir gently to combine all the flavors, ensuring the zestiness of the lemon brightens every bite.

Step 4: Toast the Baguette Slices

Preheat your oven to 375°F (190°C). Arrange the sliced French baguette pieces on a baking sheet. Toast them in the oven for about 7 to 10 minutes, or until they’re golden and crisp. This step is crucial as the crunchy base balances the soft zucchini relish perfectly.

Step 5: Assemble the Crostini

Once the baguette slices are toasted and cooled slightly, spoon generous amounts of the lemon-Parmesan zucchini relish onto each slice. Sprinkle the chopped fresh basil leaves over the top for an aromatic finish.

Step 6: Serve and Enjoy

Arrange your crostini on a serving platter and enjoy immediately. These are best served fresh to retain the crispness of the bread and the brightness of the relish.

Expert Tips

• Use fresh lemon juice: Bottled lemon juice can lose its brightness, so always opt for fresh to get that perfect zesty kick.
• Don’t overcook the zucchini: Keep its texture slightly firm to contrast the crunchy baguette slices.
• Grate your Parmesan fresh: Pre-grated cheese often contains additives and doesn’t melt or blend as well as freshly grated Parmesan.
• Choose a day-old baguette: Slightly stale bread toasts better and holds up well with the moist relish.
• Try different herbs: If basil isn’t your favorite, fresh thyme or oregano can be excellent alternatives.
• Prep ahead: You can make the relish a few hours before serving and keep it refrigerated; just add basil before serving to keep it fresh.

Variations and Customizations

• Add a spicy kick: Sprinkle a pinch of red pepper flakes into the zucchini relish for some heat.
• Swap out the cheese: For a dairy-free option, try nutritional yeast or a plant-based Parmesan alternative.
• Incorporate nuts: Toasted pine nuts or walnuts add a crunchy texture and rich flavor.
• Use different breads: Rye bread, sourdough, or a gluten-free baguette can work wonderfully depending on your preference.
• Include other veggies: Diced red bell peppers or cherry tomatoes can add color and flavor complexity.
• Make it a spread: Blend the relish slightly with a splash of olive oil for a smoother texture that’s perfect for sandwiches.

How to Store Leftovers

If you happen to have leftover zucchini relish, store it in an airtight container in the refrigerator for up to 2 days. It’s best to keep the crostini separate and assemble right before serving to maintain the crispness of the bread. Avoid storing the relish on the bread as it will become soggy quickly. When ready to eat, you can toast the baguette slices again briefly to refresh their crunch.

FAQ

Can I use yellow squash instead of zucchini for this recipe?

Absolutely! Yellow squash has a similar texture and mild flavor that works just as well in this relish. Just dice it finely and follow the same cooking steps.

Is it necessary to cook the zucchini first?

Yes, lightly sautéing the zucchini softens it just enough and enhances its flavor while reducing any excess moisture, which helps keep the crostini from becoming soggy.

Can I prepare the relish in advance?

You can prepare the zucchini relish up to 24 hours ahead and refrigerate it. Add the fresh basil leaves just before serving to keep their flavor and color vibrant.

What’s the best way to toast the baguette slices?

Toasting in the oven at 375°F for 7-10 minutes works best for even crispness. You can also use a toaster oven or grill pan. Just watch closely to avoid burning.

Conclusion

This Lemon-Parmesan Zucchini Relish Crostini recipe is a delightful fusion of fresh, zesty, and savory flavors that come together in a wonderfully crunchy bite. Its simplicity makes it accessible for cooks of all skill levels, while the flavor complexity impresses every palate. Perfect for summer parties, light lunches, or anytime you want a fresh and tasty snack, these crostini are sure to become a favorite in your recipe collection. Give it a try, and you might find yourself making this bright, vibrant dish time and time again.

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