Crispy Grilled Zucchini Parmesan Herbs

My neighbor Mary stopped by last summer with a basket of zucchini from her garden, teasing me about finding yet another way to use them. I fired up the grill on impulse, and the way those charred edges caught the Parmesan made my whole patio smell incredible. Now it is the one dish my family actually requests when zucchini season arrives.

Last July I made these for a backyard barbecue and watched everyone circle the serving platter like sharks. My cousin who claims to hate vegetables went back for thirds, and now she texts me every summer asking when I am making them again.

Ingredients

• 3 medium zucchinis: Slice them exactly 1/4 inch thick, any thinner and they will fall apart, any thicker and they will not cook through evenly
• 2 tablespoons olive oil: Really massage this into each slice so the seasoning sticks and the grill grids do not grab
• 1/2 teaspoon sea salt: Sprinkle this right before grilling, otherwise it will draw out too much water and make the zucchini soggy
• 1/4 teaspoon freshly ground black pepper: Grind it fresh because the pre-ground stuff loses its punch after a few weeks
• 1/2 teaspoon garlic powder: This coats more evenly than fresh garlic and will not burn on the hot grill
• 1/2 cup grated Parmesan cheese: Use the wedge cheese you grate yourself, the stuff in the tub will not melt the same way
• 2 tablespoons chopped fresh basil: Tear or chop this right before serving so the oils stay vibrant
• 2 tablespoons chopped fresh parsley: Flat leaf tastes better than curly here, it has a more gentle flavor
• 1 tablespoon chopped fresh chives: These add a mild onion bite that balances the rich cheese perfectly

Instructions

Fire up the grill:

Get those grates screaming hot at medium high, around 400 degrees, so you get those gorgeous dark lines instead of steaming the zucchini

Coat the slices:

Use your hands to toss every round in the oil and spices, feeling for any dry spots that need attention

Lay them down:

Arrange in one layer without overlapping, listening for that satisfying sizzle when they hit the metal

Watch for the marks:

Let them cook 4 to 5 minutes per side until you see deep brown lines and the flesh starts to soften

Add the cheese immediately:

Pile that Parmesan on while they are still piping hot so it melts into all the nooks and crannies

Finish with herbs:

Scatter the basil, parsley, and chives on top right before serving so they stay bright and fresh

Save

My sister served this at her wedding rehearsal dinner and the catering chef asked for the recipe. Something about the simple combination made everyone feel like they were eating at a tiny restaurant in Tuscany instead of a backyard in Ohio.

Getting the Perfect Grill Marks

Clean those grates with a brush while they are hot, then oil them right before adding the zucchini. Do not move the slices around once they hit the metal, let them sear undisturbed until the natural sugars caramelize into those beautiful stripes.

Serving Suggestions That Shine

This works alongside anything from the grill, but I especially love it next to simple salmon or herb crusted chicken. The charred vegetables add such a nice smoky contrast to mild proteins like white fish or even alongside a grain bowl for lunch.

Make Ahead Magic

You can slice and season the zucchini up to 4 hours ahead, storing them layered between paper towels in the fridge. Grill them right before serving and keep everything else ready in separate bowls.

• Grate extra Parmesan and keep it in a sealed container
• Chop all herbs and store with a damp paper towel
• Set the table with your prettiest platter for the final arrangement

Save

There is something about seeing that platter empty that makes all the vegetable prep worth it. Summer eating does not get better than this.

Common Recipe Questions

→ How do I prevent zucchini from getting mushy on the grill?

Slice zucchini into 1/4-inch thick rounds for optimal texture. Grill over medium-high heat for 4-5 minutes per side just until tender-crisp. Avoid overcooking—remove when grill marks appear and the slices still hold their shape. Serve immediately to maintain the perfect texture.

→ Can I make this indoors without an outdoor grill?

Yes! A grill pan or cast-iron skillet works beautifully. Preheat over medium-high heat and follow the same timing. You'll get similar charred flavor and crispy edges. Alternatively, use a panini press or indoor electric grill with the same technique.

→ What other cheeses work well with grilled zucchini?

Pecorino Romano offers a sharper, saltier profile that's excellent. For a creamier option, try fresh mozzarella cubes or crumbled feta. Hard aged cheeses like Manchego or Asiago also add wonderful depth. Vegan nutritional yeast provides a cheesy flavor for dairy-free versions.

→ Can I prepare this dish ahead of time?

You can slice and season the zucchini up to 2 hours ahead, storing refrigerated in an airtight container. However, for best results, grill and finish just before serving. The cheese melts perfectly and herbs stay vibrant when added fresh. Leftovers can be enjoyed cold or briefly reheated.

→ What herbs pair best with grilled zucchini?

Basil, parsley, and chives create a classic Mediterranean trio as used here. Other excellent options include fresh oregano, thyme, dill, or mint for a bright twist. Use tender herbs after grilling to preserve their delicate flavor, or add woody herbs like rosemary or thyme during cooking.

→ Is this suitable for specific dietary needs?

This dish is naturally vegetarian, gluten-free, and low-carb, making it versatile for many eating patterns. For strict vegetarians, verify your Parmesan uses microbial rennet rather than animal rennet. For dairy-free needs, nutritional yeast or vegan cheese shreds can replace the Parmesan.