How To Grill Zucchini And Squash

You can grill zucchini and squash easily once you know a few simple tricks.
 
Grilling brings out a sweet, smoky flavor in zucchini and squash that you just can’t get from roasting or sautéing.
 
If you’ve been wondering how to grill zucchini and squash without them turning into a mushy mess, you’re in the right place.
 
In this post, we’ll cover how to grill zucchini and squash perfectly every time, including prep, seasoning, grill temps, and timing.
 
Let’s fire up the grill.
 

How to Grill Zucchini and Squash Perfectly

Grilling zucchini and squash is simple when you follow a few foolproof steps.
 
The key is to slice them thick enough to hold their shape and to keep the heat high so they char without steaming.
 

1. Choose the Right Zucchini and Squash

Start by picking firm, small-to-medium zucchini and squash.
 
Large ones tend to be watery and seedy, which makes them fall apart on the grill.
 
Look for squash that feels heavy for its size with shiny, unblemished skin.
 
You can grill zucchini and squash of almost any variety, including yellow squash, pattypan, and even delicata.
 

2. Cut Them Into Thick Slices or Spears

How you cut zucchini and squash makes a huge difference.
 
Aim for planks about ½ inch thick or spears that are thick enough to stay stable on the grates.
 
If you slice them too thin, they’ll turn to mush before they get any char.
 
Cutting zucchini and squash lengthwise gives you more surface area for those beautiful grill marks.
 

3. Season and Oil Them Well

Brush both sides of your zucchini and squash with olive oil before grilling.
 
This keeps them from sticking and helps the seasonings cling to the surface.
 
Sprinkle them with salt, pepper, garlic powder, or whatever herbs you love.
 
When you grill zucchini and squash with a good coating of oil, you get a tender interior and a nicely browned exterior.
 

Best Tips for Grilling Zucchini and Squash

These tips will help you grill zucchini and squash like a pro, even if you’re new to grilling.
 

1. Preheat Your Grill to Medium-High

Heat is your friend when you grill zucchini and squash.
 
You want the grill at around 400–450°F (204–232°C) before the veggies hit the grates.
 
A hot grill sears the outside quickly, which locks in moisture and prevents sogginess.
 
If your grill is too cool, the zucchini and squash will steam instead of sear.
 

2. Use a Grill Basket or Skewers for Small Pieces

If you decide to cut your zucchini and squash into cubes or rounds, grab a grill basket.
 
It keeps the pieces from slipping through the grates.
 
Skewers work great too, especially when you grill zucchini and squash alongside peppers, onions, or cherry tomatoes.
 
Just soak wooden skewers first so they don’t burn.
 

3. Don’t Move Them Around Too Much

Once your zucchini and squash are on the grill, leave them alone for a few minutes.
 
Let them develop those gorgeous grill marks.
 
You’ll know they’re ready to flip when they release easily from the grates.
 
When you grill zucchini and squash this way, you get a nice char without losing the flesh.
 

4. Watch the Cooking Time Closely

Zucchini and squash cook fast, usually in about 4–6 minutes per side.
 
Thicker planks may need 8 minutes total, while thinner slices can be done in 3.
 
The best way to know when to pull them off is by feel and color.
 
When you grill zucchini and squash until they’re just tender, they’ll taste sweet and smoky, never mushy.
 

5. Add a Finishing Touch After Grilling

Once your zucchini and squash come off the grill, finish them with something bright.
 
A squeeze of lemon juice, a drizzle of balsamic glaze, or a sprinkle of fresh herbs wakes up the flavors.
 
You can even add grated parmesan or crumbled feta while they’re still warm.
 
This is the step that turns good grilled zucchini and squash into a dish people ask for again and again.
 

Common Mistakes When You Grill Zucchini and Squash

Even simple recipes can go sideways if you make one of these common mistakes.
 

1. Slicing Them Too Thin

Thin slices fall apart and burn before they soften.
 
Always cut zucchini and squash into thick enough pieces to survive the heat.
 

2. Skipping the Oil

Oil isn’t optional here.
 
Without it, your zucchini and squash will stick, and you’ll lose half of them to the grates.
 

3. Salting Too Early

Salt draws out moisture, so if you salt your zucchini and squash too far in advance, they’ll get soggy.
 
Season just before they hit the grill.
 

So, How Do You Grill Zucchini and Squash?

You grill zucchini and squash by slicing them thick, oiling and seasoning them well, and cooking them on a hot grill for just a few minutes per side.
 
It’s one of the easiest ways to turn summer produce into a smoky, tender side dish that pairs with almost anything.
 
So grab your zucchini and squash, fire up the grill, and enjoy.