How To Cook Squash On The Grill

ByLily

Grilled squash develops a smoky char that pairs well with almost any summer meal. If you want to know how to cook squash on the grill, the process is simpler than you might think.

You only need a hot grill, a little oil, and a few seasonings. The whole thing takes about 15 to 20 minutes from start to finish.

This guide covers the best squash types, prep steps, grilling times, and a couple of easy flavor ideas.

Best Squash Varieties For Grilling

Not every squash holds up on the grill. Some turn to mush fast. Others stay firm and sweet.

Summer Squash Picks

  • Zucchini: firm flesh, mild taste, holds its shape well
  • Yellow squash: slightly sweeter, cooks fast
  • Pattypan: small and round, great for skewers

Winter Squash Options

  • Butternut: dense and nutty, needs longer cooking
  • Acorn: good for thick slices or halves
  • Delicata: thin skin, no peeling needed

For quick weeknight meals, stick with zucchini or yellow squash. For a heartier side, go with butternut or acorn.

How To Cook Squash On The Grill

Follow these steps for perfectly charred squash every time.

Step 1: Prep The Squash

Wash the squash under cold water. Pat it dry with a clean towel.

Cut off both ends. Then slice the squash lengthwise into planks about 1/2 inch thick. Thick slices hold up better on the grates.

For round squash like acorn or butternut, cut them into rings or half-moons. Scoop out the seeds first.

Step 2: Season And Oil

Brush both sides of each slice with olive oil. Don’t skip this step. Oil stops the squash from sticking and helps it brown.

Sprinkle on salt and black pepper. You can also add garlic powder, smoked paprika, or dried herbs like thyme or oregano.

Let the seasoned slices sit for 10 minutes. This gives the salt time to soak in.

Step 3: Heat The Grill

Set your grill to medium-high heat. You want it around 400 to 450 degrees Fahrenheit.

Clean the grates with a wire brush. Then wipe them with an oiled paper towel using tongs. This adds a nonstick layer.

If you use a gas grill, close the lid for 10 minutes to get the grates hot. For charcoal, wait until the coals turn gray and ashy.

Step 4: Grill The Squash

Place the slices directly on the grates. Leave space between them so they cook evenly.

Close the lid and cook for 4 to 5 minutes. Flip once with tongs. Cook another 4 to 5 minutes on the other side.

You’ll know they’re done when you see clear grill marks and the flesh feels tender when poked with a fork.

Here are rough grilling times by type:

  • Zucchini or yellow squash planks: 8 to 10 minutes total
  • Pattypan halves: 10 to 12 minutes total
  • Butternut or acorn slices: 12 to 15 minutes total

Step 5: Rest And Serve

Move the squash to a platter. Let it rest for 2 to 3 minutes.

Finish with a squeeze of fresh lemon juice or a drizzle of balsamic vinegar. A sprinkle of feta or parmesan works well too.

Tips For Better Grilled Squash

These small tweaks make a big difference.

  • Cut slices the same thickness so they cook at the same rate
  • Don’t over-oil. Too much oil causes flare-ups
  • Use a grill basket for small pieces that might fall through
  • Flip only once to keep the flesh from breaking apart
  • Salt after grilling too, if you like a bolder flavor

If your squash turns out soft, you probably cooked it too long or sliced it too thin. Next time, go thicker and pull it off earlier.

Flavor Ideas And Marinades

Plain salt and pepper is fine. But you can change things up with a quick marinade.

Lemon Herb Marinade

Mix 3 tablespoons olive oil, 1 tablespoon lemon juice, 1 minced garlic clove, and 1 teaspoon chopped parsley. Brush it on before grilling.

Smoky Spice Rub

Combine 1 teaspoon smoked paprika, 1/2 teaspoon cumin, 1/2 teaspoon garlic powder, and a pinch of cayenne. Sprinkle over the oiled slices.

Balsamic Glaze Finish

Drizzle balsamic glaze over the squash right after it comes off the grill. The heat helps it stick.

Common Mistakes To Avoid

Most grilled squash problems come from a few simple errors.

  1. Slicing too thin. Thin slices burn before they cook through.
  2. Skipping the oil. Dry squash sticks and tears on the grates.
  3. Using low heat. Low heat steams the squash instead of charring it.
  4. Not cleaning the grates. Dirty grates cause sticking and odd flavors.
  5. Walking away. Squash cooks fast, so stay close to the grill.

Fix these and your squash will come out tender with nice char marks every time.

Serving Suggestions

Grilled squash goes with almost anything. Try it next to grilled chicken, burgers, or steak.

You can also toss it into pasta, grain bowls, or a summer salad. Leftovers keep in the fridge for up to 3 days. Reheat them in a skillet or eat them cold.

Now you know how to cook squash on the grill. Grab a few zucchini, fire up the grates, and give it a try this week. It’s one of the easiest side dishes you can make.

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