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You can grill squash and zucchini right on your barbecue grates, and they turn out tender, smoky, and absolutely delicious every single time.
If you’ve been wondering how to grill squash and zucchini without ending up with a mushy mess, you’re in the right place.
The good news is that grilling squash and zucchini is one of the easiest things you’ll ever cook outdoors.
You just need a few simple tricks to get that perfect char without losing all the texture.
In this post, we’ll walk through how to grill squash and zucchini step by step, from choosing the right ones to seasoning and serving them.
Let’s fire up that grill.
How to Grill Squash and Zucchini Perfectly Every Time
Grilling squash and zucchini works best when you prep them properly before they ever hit the heat.
Here’s how to set yourself up for success.
1. Pick the Right Squash and Zucchini
When you grill squash and zucchini, choose firm, medium-sized ones that feel heavy for their size.
Smaller squash and zucchini hold their shape better on the grill than oversized ones with big watery seeds.
Look for glossy skin with no soft spots, since those will turn to mush once they hit the grates.
2. Cut Them Into Even Pieces
Slice your zucchini and squash lengthwise into planks about half an inch thick for the best results.
Grilling squash and zucchini in long planks keeps them from slipping through the grates.
You can also cut them into thick rounds or half-moons if you prefer, just keep every piece roughly the same size.
Even slices mean even cooking, which is the whole secret behind how to grill squash and zucchini without burning one side.
3. Season Simply and Generously
Brush every slice with olive oil so the seasoning sticks and nothing sticks to the grill.
Sprinkle on salt, pepper, garlic powder, or dried herbs like oregano and basil.
When you grill zucchini and squash, simple seasonings let that natural sweet flavor shine through.
A squeeze of lemon after grilling brightens everything up beautifully.
Best Way to Grill Squash and Zucchini on the Barbecue
Once your squash and zucchini are prepped, the actual grilling part takes just minutes.
Here’s exactly how to do it.
1. Preheat the Grill to Medium-High Heat
You want your grill hot and clean before the squash and zucchini go on.
Medium-high heat, around 400°F, gives you those gorgeous grill marks without steaming the vegetables.
Lightly oil the grates with a paper towel dipped in oil so nothing sticks.
2. Grill for 3 to 4 Minutes Per Side
Place your zucchini and squash slices directly on the grates and leave them alone.
Grilling squash and zucchini only takes about three to four minutes per side.
Flip them once with tongs when you see nice char lines and the edges start to soften.
Resist the urge to poke and flip constantly, because that’s how pieces break apart.
3. Watch for Doneness, Not Just Time
Your grilled squash and zucchini are ready when they’re tender but still hold their shape.
They should bend slightly when you lift them with tongs but not fall apart.
If you’re grilling zucchini spears or thicker cuts, give them another minute or two.
Overcooked squash turns limp fast, so pull it off a little early if you’re unsure.
Tips for Grilling Squash and Zucchini Without Mushiness
A few smart habits separate perfectly grilled squash and zucchini from sad, soggy slices.
Keep these tips in mind.
1. Salt Them Before Grilling
Sprinkle salt on your squash and zucchini slices and let them sit for 10 to 15 minutes.
This draws out excess moisture so they grill instead of steam.
Just pat them dry before adding oil and seasonings.
2. Use a Grill Basket for Small Pieces
If you’re grilling zucchini cubes or rounds, a grill basket keeps everything from falling through.
It’s a lifesaver when you’re grilling squash and zucchini for a crowd with mixed sizes.
3. Don’t Overcrowd the Grates
Give every piece of squash and zucchini its own space on the grill.
Crowding traps steam and leads to soggy vegetables instead of beautifully charred ones.
4. Add a Marinade or Glaze
For extra flavor, marinate your squash and zucchini for 30 minutes before grilling.
Balsamic vinegar, lemon juice, and herbs make a fantastic marinade for grilled zucchini and squash.
Just avoid sugary glazes early on since they burn quickly over high heat.
So, How to Grill Squash and Zucchini?
You grill squash and zucchini by slicing them into even planks, brushing them with oil, seasoning them well, and cooking them over medium-high heat for a few minutes per side.
Grilling squash and zucchini really is that simple, and the results are smoky, tender, and packed with flavor.
Remember to pick firm produce, salt out the excess moisture, and never overcrowd the grates.
Whether you’re serving them as a side dish or piling them onto a platter with dip, learning how to grill squash and zucchini will quickly become your favorite summer cooking skill.
Happy grilling.