How Long To Cook Zucchini And Squash On The Grill

How long to cook zucchini and squash on the grill depends on how thick you slice them, but most pieces need about 3 to 5 minutes per side over medium-high heat.
 
That means a total grill time of roughly 6 to 10 minutes for perfectly tender zucchini and squash with those beautiful char marks we all love.
 
If you’ve been wondering how long to cook zucchini and squash on the grill without turning them into mush, you’re in the right place.
 
In this post, we’ll break down the exact grilling times for zucchini and squash, plus tips to get them juicy and caramelized every single time.
 
Let’s fire up that grill.
 

How Long to Cook Zucchini and Squash on the Grill

 
How long you cook zucchini and squash on the grill really comes down to a few key factors.
 
Here’s what determines whether your veggies hit that sweet spot or end up sad and soggy.
 

1. Thickness of Your Slices Matters Most

 
The single biggest factor in how long to cook zucchini and squash on the grill is how thick you cut them.
 
Thin rounds or planks that are about ¼ inch thick will cook in just 2 to 3 minutes per side.
 
If you slice them closer to ½ inch thick, plan on 4 to 5 minutes per side for nice tender bites.
 
And if you’re grilling thick spears or halves, give them 5 to 7 minutes per side so the inside cooks through without burning the outside.
 

2. Grill Temperature Changes Everything

 
Medium-high heat, around 400°F to 450°F, is the sweet spot for grilling zucchini and squash.
 
When you cook zucchini and squash on the grill at this temperature, you get that gorgeous char on the outside while keeping the inside tender but not mushy.
 
Too low and your squash steams instead of grills, which means it takes way longer and never really browns.
 
Too high and the outside burns before the inside is done, which is why knowing how long to cook zucchini and squash on the grill at the right temp matters so much.
 

3. Type of Squash Affects Grilling Time

 
Zucchini and yellow squash are both summer squash with similar textures, so they cook about the same time on the grill.
 
But if you’re grilling firmer winter squash like butternut or acorn, you’ll need way more time than zucchini and squash.
 
For this post, we’re focused on the classic summer favorites, which means how long you cook zucchini and squash on the grill stays in that 6 to 10 minute total range.
 

4. Direct vs. Indirect Heat

 
Direct heat is best for zucchini and squash because they cook fast and you want those grill marks.
 
But if your slices are thicker than an inch, you might want to start them over direct heat for the char, then move them to indirect heat to finish cooking through.
 
This method can push your total time to around 12 minutes, but it’s worth it for perfectly cooked thick pieces.
 
That’s how long to cook zucchini and squash on the grill when you’re working with heartier cuts.
 

5. Prepping Your Zucchini and Squash Right

 
Before they ever hit the grates, slice your zucchini and squash evenly so they cook at the same rate.
 
Brush them lightly with olive oil, then season with salt, pepper, and any herbs you love.
 
Don’t skip the oil, because it helps prevent sticking and encourages that golden crust.
 
A hot, well-oiled grill grate is your best friend when you cook zucchini and squash on the grill.
 

Tips for Grilling Zucchini and Squash Perfectly

 
Now that you know how long to cook zucchini and squash on the grill, here are some quick tips to nail it every time.
 

1. Don’t Walk Away

 
Zucchini and squash cook fast, so stay close to the grill and flip them once you see those char marks forming.
 

2. Use a Grill Basket for Small Pieces

 
If you cut your zucchini and squash into small chunks, a grill basket keeps them from falling through the grates.
 
Just shake the basket every couple of minutes so all sides get that smoky flavor.
 

3. Finish with a Squeeze of Lemon

 
A little lemon juice or balsamic drizzle right after grilling brightens up the flavor and makes your zucchini and squash taste restaurant-quality.
 

4. Serve Them Hot Off the Grill

 
Grilled zucchini and squash are best enjoyed right away while they’re still warm and slightly crisp.
 
If you need to hold them, keep them in a warm oven at 200°F, but don’t let them sit too long or they’ll soften up.
 

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

 
How long to cook zucchini and squash on the grill comes down to about 3 to 5 minutes per side for most slices, giving you a total of 6 to 10 minutes.
 
Thicker cuts need a bit more time, while thin rounds cook in a flash.
 
Keep your grill at medium-high heat, oil your grate, and watch closely so you get tender, charred zucchini and squash every single time.
 
Now you know exactly how long to cook zucchini and squash on the grill, so go ahead and make your next cookout delicious.