Can I make this recipe without a grill?

Absolutely! You can achieve similar results using a grill pan on your stovetop. Alternatively, roast the vegetables in a 425°F oven for about 15-20 minutes, turning halfway through, until they're tender and slightly caramelized.

What can I substitute for champagne vinegar?

White wine vinegar makes a great substitute. You could also use rice vinegar for a milder flavor or even a splash of white balsamic for something a bit sweeter.

How do I pick the best summer squash at the market?

Look for squash that feels firm and heavy for its size with smooth, shiny skin. Smaller to medium-sized squash tend to have better flavor and fewer seeds than very large ones. Avoid any with soft spots or wrinkled skin.

Can I prepare this dish in advance for a party?

Yes! Grill the vegetables up to a few hours ahead, but wait to add the feta, herbs, and dressing until just before serving. This keeps everything fresh and prevents the herbs from wilting.

Grilled Summer Squash Recipe

Name: Grilled Summer Squash Recipe
Prep time: 5 min
Cook time: 5 min
Total time: 10 min
Cuisine: Mediterranean
Ingredients: 2 medium zucchini, cut in half lengthwise; 2 medium yellow squash, cut in half lengthwise; 8 patty pan squash, cut in half; 1 red onion, cut into 8 wedges; 2 tablespoons olive oil; 1 teaspoon kosher salt; ½ teaspoon freshly cracked black pepper; 1 sheet Feta cheese; Fresh mint (for garnish); Fresh basil (for garnish); 1 lemon, juiced; 2 tablespoons champagne vinegar; ⅓ cup olive oil; 2 cloves garlic, finely chopped; 1 shallot, finely chopped; Kosher salt, to taste; Freshly cracked black pepper, to taste

This Grilled Summer Squash is a vibrant celebration of summer produce that transforms ordinary garden vegetables into a spectacular side dish. With just 10 minutes from start to finish, this recipe showcases the natural sweetness of squash enhanced by a bright lemon champagne vinaigrette, crumbled feta, and fresh herbs. The light char from the grill adds that irresistible smoky flavor that makes this dish truly special for your summer gatherings.

Why You’ll Love This Recipe

Lightning Fast: Ready in just 10 minutes, this dish is perfect for those evenings when you want something delicious without spending hours in the kitchen.
Simple Yet Impressive: The combination of colorful grilled squash, tangy feta, and aromatic herbs creates a dish that looks like you spent hours on it.
Versatile: Works beautifully as a side dish for grilled proteins, a light lunch, or even as a stunning appetizer for summer entertaining.
Healthy: Loaded with nutritious summer vegetables and dressed with heart-healthy olive oil, this dish is as good for you as it is delicious.

Ingredients You’ll Need

Olive oil: The backbone of Mediterranean cooking, it helps the vegetables caramelize perfectly on the grill and adds a rich, fruity flavor.
Kosher salt: Enhances all the flavors in the dish; kosher salt has a clean taste that doesn’t overwhelm.
Black pepper: Freshly cracked gives so much more flavor than pre-ground – it adds that perfect hint of spice.
Zucchini: Choose medium-sized ones that aren’t too large (which can be watery) or too small (which might overcook quickly).
Yellow squash: Adds a beautiful color contrast and slightly sweeter flavor than zucchini.
Red onion: Brings a wonderful sweetness when grilled and adds beautiful purple color to the dish.
Patty pan squash: These adorable little squashes add visual interest and a slightly different texture.
Feta cheese: Use a good quality block that you crumble yourself rather than pre-crumbled for the best flavor and texture.
Fresh mint: Brings a cooling, refreshing element that pairs beautifully with the smoky vegetables.
Fresh basil: Adds that distinctive summer aroma that instantly elevates any dish.
Lemon juice: The acidity brightens everything up and balances the richness of the olive oil and feta.
Champagne vinegar: Brings a delicate, slightly fruity acidity that’s less harsh than regular vinegar.
Garlic: Adds depth and a subtle kick to the dressing.
Shallot: Milder than onion, it provides a gentle aromatic base for the vinaigrette.

Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

Different Squash Options

Try using different varieties like delicata, crookneck, or even small pieces of butternut for different flavors and textures.

Cheese Alternatives

Not a feta fan? Try goat cheese, ricotta salata, or even shaved parmesan for a different flavor profile.

Herb Variations

Substitute or add other fresh herbs like oregano, thyme, dill, or parsley depending on what pairs well with your main dish.

Make It Vegan

Skip the feta and add some toasted pine nuts or sliced almonds for crunch and protein.

How to Make Grilled Summer Squash

Step 1: Prepare the Vegetables

Slice your zucchini and yellow squash lengthwise, cut the red onion into wedges, and halve the patty pan squash. Toss them all in a bowl with olive oil, salt, and pepper until well coated.

Step 2: Grill the Vegetables

Arrange the seasoned vegetables in a single layer on your preheated medium-high grill. Cook for about 2-3 minutes per side, just until you see those beautiful grill marks appear and the vegetables begin to soften slightly.

Step 3: Make the Vinaigrette

While the vegetables are grilling, whisk together the lemon juice, champagne vinegar, olive oil, chopped garlic, and shallot. Season with salt and pepper to taste.

Step 4: Assemble and Serve

Transfer the grilled vegetables to a serving platter, slice the zucchini and yellow squash into manageable pieces, crumble the feta over everything, scatter fresh mint and basil leaves throughout, and drizzle with the vibrant vinaigrette.

Pro Tips for Making the Recipe

Don’t Overcook: The squash should be tender-crisp, not mushy. They’ll continue cooking slightly after coming off the grill.
Manage Your Heat: Too hot and the vegetables will char before cooking through; too cool and you won’t get those beautiful grill marks.
Cutting Consistency: Try to cut all your vegetables to similar thicknesses so they cook evenly.
Oil Your Grill: Before adding the vegetables, make sure your grill grates are clean and lightly oiled to prevent sticking.
Make the Vinaigrette Ahead: The dressing can be made up to a day ahead and will actually develop even better flavors when it sits.

How to Serve

As a Side Dish

This grilled squash shines alongside grilled chicken, fish, or steak. The acidity of the vinaigrette cuts through rich meats beautifully.

For a Light Meal

Serve over cooked farro, quinoa, or couscous for a satisfying vegetarian main dish.

For Entertaining

Arrange on a large platter as part of an antipasto spread with olives, cured meats, and crusty bread.

Make Ahead and Storage

Preparing Components Ahead

You can slice all the vegetables up to a day ahead and store them in an airtight container in the refrigerator. The vinaigrette can also be made a day ahead and stored separately.

Storing Leftovers

Leftover grilled squash will keep in an airtight container in the refrigerator for up to 3 days. The flavors actually improve as they marinate together!

Reheating

Gently warm leftovers in a skillet over medium-low heat just until warmed through. Alternatively, enjoy them cold or at room temperature for a different but equally delicious experience.

FAQs

Can I make this recipe without a grill?

Absolutely! You can achieve similar results using a grill pan on your stovetop. Alternatively, roast the vegetables in a 425°F oven for about 15-20 minutes, turning halfway through, until they’re tender and slightly caramelized.
What can I substitute for champagne vinegar?

White wine vinegar makes a great substitute. You could also use rice vinegar for a milder flavor or even a splash of white balsamic for something a bit sweeter.
How do I pick the best summer squash at the market?

Look for squash that feels firm and heavy for its size with smooth, shiny skin. Smaller to medium-sized squash tend to have better flavor and fewer seeds than very large ones. Avoid any with soft spots or wrinkled skin.
Can I prepare this dish in advance for a party?

Yes! Grill the vegetables up to a few hours ahead, but wait to add the feta, herbs, and dressing until just before serving. This keeps everything fresh and prevents the herbs from wilting.

Final Thoughts

This Grilled Summer Squash recipe is summer dining at its finest – simple, fresh, and bursting with seasonal flavors. What I love most about this dish is how it transforms humble garden vegetables into something truly spectacular with just a few minutes on the grill and some thoughtful finishing touches. Whether you’re hosting a backyard barbecue or just looking for a quick weeknight side, this recipe delivers both ease and elegance. Give it a try while summer squash is at its peak – your taste buds (and dinner guests) will thank you!