Recipe

Grilled Zucchini

Crisp edges, tender middle, and a lemony garlic finish that makes zucchini taste like the main character.

By Matt Campbell

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4.8

A platter of grilled zucchini planks with char marks, drizzled with olive oil and lemon, sprinkled with herbs on a wooden table

Grilled zucchini gets a bad rap because it’s so easy to overcook. One minute it’s bronzed and snackable, the next it’s limp and watery and you’re wondering why you even turned on the grill. This version is my go-to because it’s built for crisp edges and a tender bite, plus a bright lemon garlic finish that makes the whole thing taste alive.

We keep it simple: cut zucchini into planks so they don’t fall through the grates, salt just enough to wake it up, grill hot and fast, then hit it with lemon, herbs, and a little optional Parmesan if you’re feeling extra. It’s the kind of side that disappears while you’re still carrying plates to the table.

Whole zucchini, a lemon, garlic, olive oil, salt, pepper, and fresh herbs arranged on a light kitchen counter

Why It Works

Hot and fast grilling gives you real char and helps keep the zucchini from turning mushy.
Planks or thick coins mean more surface area for browning and fewer pieces slipping into grill purgatory.
Lemon added after grilling stays bright and fresh instead of tasting dull or slightly bitter from high heat.
Garlic and herbs in the finishing oil coat every piece without burning on the grates.

Pairs Well With

Storage Tips

Refrigerate: Store cooled grilled zucchini in an airtight container for 3 to 4 days. If you used fresh herbs, tuck a paper towel on top to help manage moisture.

Reheat: Best in a hot skillet (medium-high, 2 to 3 minutes) to bring back some edge. The microwave works, but it’ll soften the texture.

Eat it cold: Honestly great straight from the fridge in sandwiches, grain bowls, or chopped into a quick pasta salad.

Freezing: Not my favorite. Zucchini gets watery after thawing. If you must, freeze flat on a sheet pan, then bag it. Plan to use it in soups or sauces, not as a side.

Common Questions

How do I keep grilled zucchini from getting soggy?

Use high heat and don’t overcook it. Zucchini is mostly water, so the goal is quick charring, not slow roasting. Cut it thicker (about 1/2-inch planks), pat it dry after cutting, and grill 2 to 4 minutes per side depending on heat and thickness.

Do I need to salt zucchini before grilling?

You don’t have to, but a light salt right before grilling helps flavor it all the way through. If you salt far in advance, it’ll pull out water. If you want to do that on purpose, salt for 10 minutes, then blot very well before oiling and grilling.

Should I peel zucchini?

Nope. The skin helps it hold its shape on the grill and adds a little bite. Just wash and trim the ends.

Can I grill zucchini on a grill pan indoors?

Yes. Preheat the grill pan until it’s properly hot, then cook the same way. You might need an extra minute per side since indoor pans can run a bit cooler than an outdoor grill.

What seasonings go best with zucchini?

Garlic, lemon, black pepper, red pepper flakes, oregano, basil, thyme, and Parmesan are all great. For a smoky vibe, add a pinch of smoked paprika to the oil.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Outdoor grill (gas or charcoal) or a stovetop grill pan
Long tongs
Cutting board and chef’s knife
Small bowl for the finishing oil
Pastry brush (optional, for oil)

I used to treat zucchini like a chore ingredient. It showed up in summer, I bought it because it was cheap and looked innocent, and then I cooked it into sadness. The turning point was realizing zucchini isn’t meant for low-and-slow anything. It wants a hot grill, a little chaos, and a punchy finish. Now I make it while everything else is resting, and half the time I’m “taste-testing” pieces off the platter before dinner even starts.

Grilled Zucchini

(4.8 Reviews)

Prep Time 10 minutes

Cook Time 8 minutes

Total Time 18 minutes

Servings 4

Ingredients

4 medium zucchini (about 2 pounds), ends trimmed
2 1/2 tablespoons olive oil, divided
1 teaspoon kosher salt, plus more to taste
1/2 teaspoon black pepper
1 small lemon (zest and 1 to 2 tablespoons juice, divided)
1 small garlic clove, finely grated or minced
1 tablespoon chopped fresh basil or parsley (or a mix)
1/4 teaspoon red pepper flakes (optional)
2 tablespoons finely grated Parmesan (optional)

Zucchini cut into thick planks on a wooden cutting board with a chef’s knife beside it on a bright kitchen counter

Instructions

Preheat the grill. Heat your grill to medium-high to high. You’re looking for a hot grill, roughly 450°F to 500°F if you have a thermometer. Clean and oil the grates well.
Charcoal vs gas note: Charcoal can run hotter in spots, so keep an eye on the first batch and be ready to flip a little sooner.
Slice the zucchini. Cut zucchini lengthwise into 1/2-inch planks. If a zucchini is very large, you can cut planks into shorter pieces for easier flipping.
Season. Toss zucchini with 1 1/2 tablespoons olive oil, salt, and black pepper. Keep it lightly coated, not drenched. If planks are awkward in a bowl, lay them on a sheet pan and brush or rub oil on both sides, then sprinkle with salt and pepper.
Grill hot and fast. Lay zucchini on the grill in a single layer. Grill 2 to 4 minutes per side, until charred with grill marks and just tender. Thicker planks and slightly cooler grills will land closer to 4 minutes. You want it to bend slightly, not collapse.
Make the lemon garlic finish. In a small bowl, mix remaining 1 tablespoon olive oil with lemon zest, 1 tablespoon lemon juice, garlic, herbs, and red pepper flakes if using.
Make-ahead tip: You can mix this 10 to 15 minutes ahead while the grill heats so the garlic has time to bloom.
Finish and serve. Move grilled zucchini to a platter and spoon the lemon garlic mixture over top. Taste and add more lemon juice, salt, or pepper as needed. Shower with Parmesan if you want. Serve warm or at room temp.
Why add lemon after: Lemon stays brighter off the heat and can taste a little bitter or dull if it gets scorched over high heat.