This grilled zucchini with Parmesan is one of those simple side dishes that always feels a little special. It has tender zucchini, light char from the grill, and a salty, cheesy finish that makes people reach for seconds. I love it because it uses just a few ingredients, comes together fast, and tastes like summer on a plate.
Why I Love This Recipe
Here is why I keep coming back to it:
- It uses basic ingredients but still tastes fresh and flavorful
- The grill gives the zucchini a smoky, savory flavor in just a few minutes
- Parmesan adds a salty finish that makes the whole dish pop
- It works as a side dish for almost any dinner
- It is quick enough for busy weeknights but nice enough for guests
Why This Recipe Works (Quick Science)
Zucchini has a lot of water in it. When you slice it, salt it lightly, and cook it over high heat, the outside browns before the inside turns mushy. That is what gives you tender zucchini with a little bite left. Olive oil helps the surface heat evenly and keeps the zucchini from sticking. Parmesan works well here because it is dry and salty, so it melts just a little on the hot zucchini without making the dish watery.
What You’ll Need
- 4 medium zucchini, about 1 1/2 pounds total
- 2 tablespoons olive oil
- 1/2 teaspoon kosher salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/3 cup finely grated Parmesan cheese
- 1 tablespoon chopped fresh parsley, optional
- 1 teaspoon lemon juice, optional for serving
This recipe makes 4 servings.
Prep time: 10 minutes
Cook time: 8 to 10 minutes
Total time: about 20 minutes
Tools Required
- Cutting board
- Chef’s knife
- Measuring spoons
- Small bowl
- Spoon or small whisk
- Pastry brush or spoon for oiling
- Tongs
- Outdoor grill, grill pan, or grill tray
- Round plate for serving
Substitutions and Variations
- Use Pecorino Romano instead of Parmesan for a sharper, saltier flavor
- Use Italian seasoning instead of garlic powder for a more herby taste
- Add 1/4 teaspoon red pepper flakes for a little heat
- Use yellow summer squash for half of the zucchini if you want mixed color
- Skip the parsley and finish with fresh basil instead
- Add a little lemon zest at the end for a brighter finish
Make-Ahead Tips
- Slice the zucchini up to 1 day ahead and keep it in the fridge in a sealed container
- Mix the olive oil, salt, pepper, and garlic powder a few hours ahead
- Grate the Parmesan ahead of time so everything is ready when the zucchini comes off the grill
- This dish is best fresh, but you can grill the zucchini a few hours early and rewarm it gently before serving
Grilled Zucchini with Parmesan Recipe
Step 1: Slice the zucchini
Trim the ends off all 4 medium zucchini. Slice them lengthwise into planks about 1/4 inch thick, or into thick rounds if that is easier for you. I like planks because they are easier to turn on the grill and less likely to fall through. Try to keep the slices close to the same thickness so they cook evenly.
Step 2: Season the zucchini
In a small bowl, stir together 2 tablespoons olive oil, 1/2 teaspoon kosher salt, 1/4 teaspoon black pepper, and 1/2 teaspoon garlic powder. Brush or spoon this mixture over both sides of all the zucchini planks. Make sure each piece gets coated, but do not soak them. A light, even coating helps the zucchini brown instead of steam.
Step 3: Heat the grill
Preheat the grill or grill pan to medium-high heat. You want it hot enough to make grill marks quickly. If the grill is not hot, the zucchini will soften too much before it browns. Lightly oil the grates if needed.
Step 4: Grill the zucchini
Place the seasoned zucchini planks on the hot grill in a single layer. Cook for 3 to 4 minutes on the first side, then flip with tongs and cook for 2 to 3 minutes on the second side. The zucchini should look tender with dark grill marks but still hold its shape. Work in batches if needed so you do not crowd the pan or grill.
Step 5: Add the Parmesan
Transfer the hot grilled zucchini to a round white plate. Right away, sprinkle 1/3 cup finely grated Parmesan cheese over the zucchini so it softens slightly from the heat. Add 1 tablespoon chopped fresh parsley and 1 teaspoon lemon juice if using. Serve warm.
Pro Tips
- Do not slice the zucchini too thin. Around 1/4 inch is the sweet spot for tender zucchini that does not fall apart.
- Keep the grill hot. High heat gives you grill marks fast and helps the zucchini stay firmer.
- Do not crowd the grill or pan. Space helps the zucchini sear instead of steam.
- Add the Parmesan while the zucchini is still hot so it softens just enough and sticks better.
- Serve it right away for the best texture. Zucchini is at its best when it is freshly grilled.
Common Mistakes
- Cutting the zucchini too thin, which makes it limp and hard to turn
- Using too much oil, which can make the zucchini greasy instead of lightly coated
- Cooking over low heat, which can turn the zucchini watery and soft
- Overcooking, which makes it mushy
- Adding the cheese too early on the grill, which can burn before the zucchini is done
What to Serve With
- Grilled chicken
- Steak
- Burgers
- Salmon
- Pasta with light tomato sauce
- Rice or couscous
- Crusty bread and a simple salad
Macros Information
These numbers are for 1 of 4 servings and can vary a little depending on the size of the zucchini and how much Parmesan you use.
- Calories: about 95
- Protein: 4 grams
- Carbs: 5 grams
- Fat: 7 grams
- Fiber: 2 grams
- Sugar: 3 grams
- Sodium: about 260 milligrams
Leftovers and Storage
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently in a skillet, grill pan, or oven so the zucchini does not get too soft. The microwave works, but the texture will be softer. You can also chop leftover grilled zucchini and add it to pasta, wraps, omelets, or grain bowls.
FAQ
Can I make this without an outdoor grill?
Yes. A grill pan on the stove works very well. You can also use a hot cast-iron skillet, though the grill marks will be different.
Do I need to salt the zucchini first and let it sit?
Not for this recipe. Since the zucchini cooks fast over fairly high heat, a light seasoning right before grilling works well.
Can I use pre-shredded Parmesan?
You can, but finely grated Parmesan melts and clings better. Pre-shredded cheese is usually drier and does not melt as smoothly.
Can I make this ahead for a party?
Yes, but it is best served fresh. You can grill the zucchini a few hours ahead, then warm it slightly and add the Parmesan right before serving.
Can I make it round slices instead of planks?
Yes. Just cut thick rounds, about 1/2 inch thick, so they stay sturdy on the grill.
Final Thoughts
This grilled zucchini with Parmesan is proof that simple food can still be really good. It is quick, fresh, and full of flavor without a lot of work. Try it the next time you need an easy side dish, and make it your own with herbs, lemon, or a little heat. I hope it finds a spot at your table. Leave a comment and share how it turned out or ask any questions you have.