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You can grill squash and zucchini right on your grill grates, and they come out tender with those beautiful char marks every single time.
If you’ve been wondering how to grill squash and zucchini without them turning into a mushy mess, the answer is simpler than you think.
The key is slicing them thick enough, oiling them well, and not walking away while they cook.
In this post, we’ll walk through how to grill squash and zucchini step by step, from choosing the right squash to serving them up hot.
Let’s fire up that grill.
Why Grilling Squash and Zucchini Works So Well
Grilling squash and zucchini works beautifully because these summer vegetables hold their shape when cooked over high heat.
They have a high water content, but a quick sear on a hot grill evaporates surface moisture and lets the natural sugars caramelize.
That’s how you get those smoky, slightly sweet flavors that make grilled squash and zucchini taste so good.
Unlike boiling or steaming, grilling adds char and depth without turning them into mush.
Plus, when you grill squash and zucchini, you’re keeping things healthy because you barely need any oil.
1. The Right Texture Comes From High Heat
When you grill squash and zucchini over high heat, the outside chars fast while the inside stays tender-crisp.
That contrast is exactly what you want.
2. Grilling Brings Out Natural Sweetness
As squash and zucchini cook on the grill, their natural sugars caramelize and deepen in flavor.
This is why grilled squash and zucchini never taste bland.
3. It’s a Fast, Healthy Cooking Method
The whole process of how to grill squash and zucchini takes under fifteen minutes.
And because you use very little oil, grilled squash and zucchini fit into almost any diet.
How to Grill Squash and Zucchini Step by Step
Learning how to grill squash and zucchini is all about prep, heat, and timing.
Here’s how to grill squash and zucchini so they come off the grill perfectly every time.
1. Pick Firm, Medium-Sized Squash and Zucchini
Small to medium squash and zucchini grill better than huge ones because they have fewer seeds and firmer flesh.
Look for squash and zucchini that feel heavy and firm with shiny skin.
2. Slice Them Into Thick Rounds or Planks
Cut your squash and zucchini into rounds about half an inch thick, or slice them lengthwise into planks.
Thicker slices of squash and zucchini hold up on the grill instead of falling apart or turning limp.
3. Toss With Oil, Salt, and Pepper
Brush or toss the squash and zucchini with olive oil so every piece is lightly coated.
Then season with salt, pepper, and any herbs you love.
The oil helps the squash and zucchini release from the grates and encourages even charring.
4. Preheat the Grill to Medium-High
Get your grill hot before the squash and zucchini ever touch it.
Clean the grates and oil them lightly so the squash and zucchini don’t stick.
5. Grill for 3 to 4 Minutes Per Side
Place the squash and zucchini directly on the grates and leave them alone.
Flip once, then grill the other side until you see those gorgeous grill marks.
Total time for grilled squash and zucchini is usually six to eight minutes.
6. Serve Immediately With Your Favorite Toppings
Grilled squash and zucchini taste best hot off the grill.
Finish them with lemon juice, parmesan, or a drizzle of balsamic glaze.
Tips and Mistakes to Avoid When You Grill Squash and Zucchini
Even though grilled squash and zucchini are easy, a few common mistakes can ruin the batch.
Keep these tips in mind so your squash and zucchini turn out perfect.
1. Don’t Slice Them Too Thin
Thin slices of squash and zucchini fall through the grates and cook way too fast.
Stick with half-inch thickness when you grill squash and zucchini.
2. Avoid Overcrowding the Grill
Give each piece of squash and zucchini room to breathe.
Crowding steams them instead of grilling them, and nobody wants soggy squash and zucchini.
3. Don’t Overcook Them
Squash and zucchini go from perfectly tender to mushy in about a minute.
Pull them off while they still have a little bite.
4. Use a Grill Basket if Needed
If you’re worried about smaller pieces of squash and zucchini slipping through, use a grill basket.
It’s a simple trick when you grill squash and zucchini for a crowd.
So, How to Grill Squash and Zucchini?
You can grill squash and zucchini by slicing them thick, coating them in oil, and cooking them over medium-high heat for a few minutes per side.
When you grill squash and zucchini this way, you get tender, smoky, perfectly charred vegetables every single time.
So fire up the grill, grab your squash and zucchini, and enjoy one of the easiest summer side dishes you’ll ever make.