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Cutting zucchini and squash for grilling starts with choosing the right size and shape so every slice cooks evenly on the grates.
If you’ve ever wondered how to cut zucchini and squash for grilling without turning them into a mushy mess, you’re in the right place.
The way you cut zucchini and squash for grilling matters just as much as the marinade or the heat of your grill.
In this post, we’ll walk through how to cut zucchini and squash for grilling, the best thickness for grilling zucchini and squash, and a few simple tips that keep your slices firm and pretty with those coveted grill marks.
Let’s get slicing.
How to Cut Zucchini and Squash for Grilling
Cutting zucchini and squash for grilling is really about two things: shape and thickness.
Get those right, and you’ll have slices that hold together on the grill instead of falling through the grates.
Here’s how to cut zucchini and squash for grilling step by step.
1. Wash and Trim First
Rinse your zucchini and squash under cool water and pat them dry.
Then slice off both ends with a sharp knife.
A sharp knife matters here because a dull blade will crush the flesh and leave you with ragged edges that stick to the grill.
2. Decide Between Slices, Spears, or PlanKS
There are three main ways to cut zucchini and squash for grilling, and each one works for different reasons.
Round slices are the classic choice, and they’re great for burgers and skewers.
Spears or wedges hold up well for turning by hand and give you a meatier bite.
PlanKS, cut lengthwise, are perfect when you want to lay zucchini and squash flat across the grates and flip them in one piece.
3. Cut Slices About 1/2 Inch Thick
The best thickness for grilling zucchini and squash slices is around half an inch.
Go too thin and your zucchini and squash will turn limp and slip through the grates.
Go too thick and the outside chars before the inside softens.
Half an inch is that sweet spot where zucchini and squash cook through while keeping a little bite.
4. Slice on a Slight Bias for More Surface Area
Instead of cutting straight down, tilt your knife a bit and cut on a diagonal.
This gives each piece of zucchini and squash more surface area for grill marks and marinade.
It also makes the slices look a little fancier without any extra effort.
5. Keep Pieces Similar in Size
Try to keep your zucchini and squash pieces roughly the same size and thickness.
That way they all finish cooking at the same time.
Nobody wants one charred squash coin next to a raw one on the same platter.
Best Thickness and Shapes for Grilling Zucchini and Squash
Once you know how to cut zucchini and squash for grilling, the next question is which shape suits your meal.
Here’s a quick breakdown to help you decide.
1. Round Slices for Skewers and Burgers
Half-inch rounds are the go-to cut for grilling zucchini and squash when you’re building veggie skewers or stacking them on a burger.
Just thread them onto soaked wooden skewers so they don’t spin when you flip.
2. Lengthwise PlanKS for Easy Flipping
Cut your zucchini and squash lengthwise into slabs about half an inch thick.
These planks are easy to flip with tongs and they give you long, beautiful grill marks.
They’re also sturdy enough to hold a sprinkle of herbs and cheese.
3. Spears or Wedges for Heartier Bites
Cut zucchini and squash into quarters lengthwise, then halve those for spears.
These chunky pieces take a few extra minutes on the grill but they hold their shape beautifully.
They’re my favorite when I’m grilling zucchini and squash alongside chicken or steak.
Tips for Grilling Zucchini and Squash Perfectly
How you cut zucchini and squash for grilling is only half the story.
A few grilling habits make a huge difference in how your zucchini and squash turn out.
1. Salt and Rest Before Grilling
Sprinkle your cut zucchini and squash with salt and let them sit for about fifteen minutes.
The salt pulls out excess water so your slices don’t steam on the grill.
Just pat them dry before they hit the heat.
2. Oil the Grill and the Veggies
Brush zucchini and squash with oil before grilling, and oil your clean grill grates too.
This double layer of protection keeps your zucchini and squash from sticking and tearing.
3. Use Medium-High Heat and Don’t Fuss
Grill zucchini and squash over medium-high heat for about three to four minutes per side.
Resist the urge to poke and move them around.
Let those grill marks set before you flip.
4. Add Marinade After, Not Before
If you’re using a marinade with oil or sugar, brush it on near the end of grilling.
Sugar burns fast, and your beautiful zucchini and squash deserve better than a bitter char.
So, How Do You Cut Zucchini and Squash for Grilling?
You cut zucchini and squash for grilling by trimming the ends, then slicing them into half-inch rounds, lengthwise planks, or sturdy spears.
Keep the pieces similar in size, oil them well, and grill over medium-high heat for a few minutes per side.
Do that, and your zucchini and squash will come off the grill tender, smoky, and marked with those perfect lines.
Happy grilling.