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You can grill zucchini and squash on a gas grill easily, and they come out tender, smoky, and delicious every single time.
The key is preheating your gas grill properly and slicing the veggies thick enough so they don’t fall apart or turn to mush.
Once you know how to grill zucchini and squash on a gas grill, you’ll wonder why you ever cooked them any other way.
In this post, we’ll walk through the whole process step by step, from prepping your zucchini and squash to getting those perfect char marks on a gas grill.
Let’s fire it up.
Why Grilling Zucchini and Squash on a Gas Grill Works So Well
Grilling zucchini and squash on a gas grill works so well because these veggies hold up beautifully to high, dry heat.
Unlike leafy greens that wilt instantly, zucchini and squash have a sturdy flesh that firms up as it cooks.
Plus, a gas grill gives you consistent, controllable heat, which makes grilling zucchini and squash way easier than fussing with charcoal.
And honestly, the smoky flavor you get from grilling zucchini and squash on a gas grill is unbeatable.
1. Zucchini and Squash Have Low Water Content Compared to Other Veggies
Zucchini and squash don’t release as much water as, say, tomatoes or cucumbers.
That means when you grill zucchini and squash on a gas grill, they char instead of steam.
This is exactly what you want for those gorgeous grill marks.
2. Their Firm Texture Holds Up to Grill Grates
Sliced thick, zucchini and squash sit nicely on the grates without slipping through.
When you grill zucchini and squash on a gas grill, they stay intact and flip easily with a pair of tongs.
No veggie basket required, though it can help if you cut them small.
3. Gas Grills Offer Even, Adjustable Heat
One big advantage of learning how to grill zucchini and squash on a gas grill is temperature control.
You can crank it to medium-high for a quick sear or dial it down to medium for a gentler cook.
That flexibility is why grilling zucchini and squash on a gas grill is basically foolproof once you get the hang of it.
How to Grill Zucchini and Squash on a Gas Grill: Step by Step
Here’s exactly how to grill zucchini and squash on a gas grill from start to finish.
1. Preheat Your Gas Grill to Medium-High
Start by preheating your gas grill with the lid closed for about 10 to 15 minutes.
You want it hot, around 400°F to 450°F, before you grill zucchini and squash.
A hot grill gives you those beautiful sear marks and keeps the veggies from sticking.
2. Slice Zucchini and Squash Into Thick Rounds or Planks
Cut your zucchini and squash into slices about half an inch thick.
If you cut them lengthwise into planks, they’re even easier to flip when you grill zucchini and squash on a gas grill.
Just avoid paper-thin slices because they’ll turn limp and fall apart.
3. Toss With Oil and Simple Seasonings
Brush or toss your zucchini and squash with a little olive oil.
Then season with salt, pepper, garlic powder, or whatever herbs you love.
This step is crucial because oil prevents sticking and helps your zucchini and squash grill evenly.
4. Place Them Directly on the Grill Grates
Lay your zucchini and squash directly on the hot grates without crowding them.
If you overcrowd the grill, they’ll steam instead of sear, and you won’t get that nice char.
Give each slice its own little space so the magic can happen.
5. Grill for 3 to 5 Minutes Per Side
Close the lid and let them cook for about 3 to 5 minutes.
Then flip and cook another 3 to 5 minutes until they’re tender and marked.
The total time to grill zucchini and squash on a gas grill is usually 8 to 10 minutes.
6. Watch for Doneness and Avoid Overcooking
You’ll know your zucchini and squash are done when they’re fork-tender but not mushy.
Overcooking is the number one mistake people make when they grill zucchini and squash on a gas grill.
So keep an eye on them and pull them off while they still have a little bite.
Tips for Perfectly Grilled Zucchini and Squash Every Time
A few extra tips will make grilling zucchini and squash on a gas grill even more foolproof.
1. Don’t Peel the Skin
The skin on zucchini and squash helps hold them together on the grill.
It also adds color and nutrients, so leave it on when you grill zucchini and squash.
2. Marinate for Extra Flavor
If you have time, marinate your zucchini and squash for 30 minutes before grilling.
A simple mix of olive oil, lemon juice, and herbs takes grilled zucchini and squash to the next level.
3. Use a Grill Basket for Smaller Pieces
If you cut your zucchini and squash into cubes or thin rounds, use a grill basket.
That way you can still grill zucchini and squash on a gas grill without losing pieces through the grates.
4. Clean and Oil Your Grates First
Always scrape your grates clean and brush them with oil before you grill zucchini and squash.
This prevents sticking and makes flipping so much easier.
5. Add a Squeeze of Lemon at the End
A little fresh lemon juice right after grilling zucchini and squash brightens everything up.
It’s a tiny step that makes a big difference in flavor.
So, Can You Grill Zucchini and Squash on a Gas Grill?
Yes, you can absolutely grill zucchini and squash on a gas grill, and it’s one of the easiest, tastiest ways to cook them.
Just preheat your grill, slice the veggies thick, oil and season them, and cook for a few minutes per side.
Once you master how to grill zucchini and squash on a gas grill, it’ll become a staple in your summer cooking rotation.
So grab your zucchini and squash, fire up that gas grill, and enjoy every smoky, tender bite.