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You can grill zucchini and squash right on your barbecue grates with just a little oil, salt, and pepper.
It’s one of the easiest summer side dishes you’ll ever make, and the charred, smoky flavor is absolutely unbeatable.
If you’ve been wondering how to grill zucchini and squash without turning them into a mushy mess, the answer is simpler than you think.
In this post, we’ll walk through how to grill zucchini and squash perfectly, from choosing the right size to getting those beautiful grill marks every single time.
Let’s fire up the grill.
Why Grilling Zucchini and Squash Works So Well
Grilling zucchini and squash works so well because both vegetables have a firm texture and mild flavor that hold up beautifully to high heat.
Here’s why they’re a match made in barbecue heaven:
1. They Hold Their Shape
When you grill zucchini and squash, they keep their structure far better than softer veggies like tomatoes.
The flesh firms up as it cooks, so you get tender bites with a little bite back instead of a pile of mush.
2. They Soak Up Smoke and Seasoning
Zucchini and squash have a neutral taste, which means they act like a sponge for whatever you put on them.
That’s why learning how to grill zucchini and squash is really about layering flavor, whether that’s garlic powder, smoked paprika, or a squeeze of lemon at the end.
3. They Cook Fast
Grilling zucchini and squash takes only about 8 to 12 minutes total, depending on thickness.
That makes them perfect for a quick weeknight dinner or a last-minute cookout side.
How to Grill Zucchini and Squash Step by Step
Knowing how to grill zucchini and squash comes down to a few simple steps that anyone can master.
1. Pick the Right Size
For grilling zucchini and squash, choose medium-sized ones about 6 to 8 inches long.
Smaller zucchini and squash are more tender and have fewer seeds, while giant ones tend to be watery and bland.
2. Slice Them Evenly
Cut your zucchini and squash into planks about 1/2 inch thick, or into rounds if you prefer.
Consistent thickness is the secret to grilling zucchini and squash evenly, so none of your pieces burn while others stay raw.
3. Oil and Season Generously
Brush each slice with olive oil on both sides so they don’t stick to the grates.
Then season with salt, pepper, and whatever herbs or spices you love, because grilled zucchini and squash can handle bold flavors.
4. Preheat the Grill to Medium-High
You want your grill hot, around 400 to 450°F, before the zucchini and squash ever touch the grates.
A hot grill gives you those gorgeous char marks and keeps the inside from drying out.
5. Grill for 3 to 5 Minutes Per Side
Place your zucchini and squash slices directly on the grates and resist the urge to move them around.
After 3 to 5 minutes, flip once and cook the other side until tender and lightly charred.
6. Finish with a Bright Touch
Once your grilled zucchini and squash come off the heat, squeeze fresh lemon juice or sprinkle grated parmesan on top.
This little finish is what takes grilled zucchini and squash from good to unforgettable.
Common Mistakes When Grilling Zucchini and Squash
Even seasoned grillers mess up zucchini and squash sometimes, so here’s what to avoid:
1. Slicing Too Thin
Thin slices of zucchini and squash fall apart and slip through the grates.
Keep them at least 1/2 inch thick for the best results when grilling zucchini and squash.
2. Skipping the Oil
Dry zucchini and squash will stick and tear the moment you try to flip them.
A thin coat of oil solves this problem instantly.
3. Walking Away
Zucchini and squash grill fast, so stay close by.
An extra minute or two can be the difference between perfectly grilled zucchini and squash and a sad, burnt batch.
4. Salting Too Early
Salt draws out moisture, so if you salt your zucchini and squash too far in advance, they’ll turn limp and soggy.
Season right before they hit the grill.
So, How Do You Grill Zucchini and Squash?
You grill zucchini and squash by slicing them into half-inch planks, coating them in oil and seasoning, and cooking them on a hot grill for a few minutes per side.
It’s that simple, and the results speak for themselves.
Whether you’re serving grilled zucchini and squash alongside burgers, chicken, or a big summer salad, they always steal the show.
Now that you know how to grill zucchini and squash, grab your tongs, heat up those coals, and enjoy every smoky, tender bite.