How To Cook Zucchini And Squash On The Grill

You can cook zucchini and squash on the grill by slicing them into planks or spears, brushing them with oil, and cooking them over medium-high heat until they’re tender with nice char marks.
 
It’s one of the easiest ways to enjoy summer produce, and the grill brings out a smoky sweetness that roasting just can’t match.
 
If you’ve been wondering how to cook zucchini and squash on the grill without turning them into mush, you’re in the right place.
 
In this post, we’ll walk through how to cook zucchini and squash on the grill, from picking the right squash to nailing the perfect char.
 
Let’s fire it up.
 

Why Cooking Zucchini and Squash on the Grill Works So Well

Cooking zucchini and squash on the grill works so well because these summer vegetables hold their shape beautifully over open flames.
 
Here’s why grilling is one of the best ways to cook zucchini and squash:
 

1. High Heat Means Quick Cooking

Zucchini and squash are mostly water, so they cook fast.
 
A hot grill sears the outside before the inside turns to mush.
 
That’s why cooking zucchini and squash on the grill takes just a few minutes per side.
 

2. Smoke Adds Serious Flavor

When you cook zucchini and squash on the grill, the smoke infuses them with a deep, savory flavor.
 
That smoky note pairs perfectly with the natural sweetness of summer squash.
 
It’s a flavor you simply can’t get from a skillet.
 

3. Char Marks Make Them Look Impressive

Let’s be honest, those grill marks make any dish look restaurant-worthy.
 
Cooking zucchini and squash on the grill gives you those beautiful lines with almost zero effort.
 
Your guests will think you spent way more time than you did.
 

How to Prep Zucchini and Squash for the Grill

How you prep zucchini and squash for the grill matters just as much as the cooking itself.
 
Follow these steps so your grilled zucchini and squash come out perfect every time:
 

1. Choose Firm, Medium-Sized Squash

Small to medium zucchini and squash work best for grilling.
 
Oversized ones tend to be watery and seedy, which means they’ll fall apart on the grates.
 
Look for squash that feels heavy and firm with shiny skin.
 

2. Slice Into Planks or Spears

For zucchini, cut lengthwise into half-inch planks.
 
For yellow squash, spears or thick rounds hold up well too.
 
Consistent thickness is key when you cook zucchini and squash on the grill because it ensures even cooking.
 

3. Salt Them First

Sprinkle your sliced zucchini and squash with salt and let them sit for about 15 minutes.
 
This draws out excess moisture so they don’t steam on the grill.
 
Just pat them dry before moving on to the next step.
 

4. Brush With Oil and Season

Brush both sides with olive oil so they don’t stick.
 
Then season with salt, pepper, garlic powder, or whatever blend you love.
 
This is your chance to flavor the zucchini and squash before they hit the heat.
 

Step-by-Step: Cooking Zucchini and Squash on the Grill

Now for the main event, let’s actually cook zucchini and squash on the grill.
 
Here’s the simple process:
 

1. Preheat the Grill to Medium-High

You want the grill around 400–450°F.
 
Clean the grates and oil them well so your zucchini and squash release easily.
 
A properly heated grill is the secret to great char without sticking.
 

2. Place Squash Directly on the Grates

Lay your zucchini and squash planks diagonally across the grates.
 
Resist the urge to move them around.
 
Let them sit undisturbed so those grill marks can form.
 

3. Grill 3–4 Minutes Per Side

Cook zucchini and squash on the grill for about 3 to 4 minutes per side.
 
Flip once, using tongs, and rotate 45 degrees if you want crosshatch marks.
 
They’re done when they’re tender but still hold their shape.
 

4. Watch for Doneness, Not Just Time

Every grill runs differently, so trust your eyes and your tongs.
 
When you cook zucchini and squash on the grill, they should feel slightly soft when pressed.
 
If they’re floppy, you’ve gone too far.
 

5. Finish With a Squeeze of Lemon

Once off the grill, hit your zucchini and squash with fresh lemon juice.
 
A sprinkle of fresh herbs like basil or parsley takes them over the top.
 
Serve immediately while they’re still warm and smoky.
 

Tips and Flavor Ideas for Grilled Zucchini and Squash

Want to level up your grilled zucchini and squash?
 
Try these ideas the next time you cook zucchini and squash on the grill:
 

1. Use a Grill Basket for Small Pieces

If you cut your zucchini and squash into rounds or chunks, use a grill basket.
 
It keeps everything from falling through the grates.
 
You still get great char with zero frustration.
 

2. Try a Marinade

Marinate sliced zucchini and squash for 30 minutes before grilling.
 
Balsamic vinegar, olive oil, and garlic make a fantastic combo.
 
Just don’t marinate too long or the squash gets soft.
 

3. Add a Glaze at the End

Brush on a honey-balsamic glaze during the last minute of grilling.
 
It caramelizes beautifully and makes your zucchini and squash irresistible.
 
Just watch closely because sugar burns fast.
 

4. Toss With Parmesan and Herbs

After cooking zucchini and squash on the grill, toss them with grated parmesan.
 
Add fresh herbs like thyme, mint, or dill for a bright finish.
 
This simple move turns a side dish into something special.
 

So, How to Cook Zucchini and Squash on the Grill?

You cook zucchini and squash on the grill by slicing them into planks, oiling and seasoning them, and grilling over medium-high heat for a few minutes per side.
 
It’s fast, forgiving, and endlessly customizable.
 
Now that you know how to cook zucchini and squash on the grill, grab your tongs and get grilling.
 
Your summer cookouts just got a whole lot tastier.