Name: Grilled Summer Squash with Feta and Lemon Champagne Vinaigrette 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 leaves, for garnish; Fresh basil leaves, for garnish; 1 lemon, juiced; 2 tablespoons champagne vinegar; ⅓ cup olive oil; 2 cloves garlic, finely chopped; 1 shallot, finely chopped; Kosher salt and freshly cracked black pepper, to taste

I absolutely adore sharing this Grilled Summer Squash with Feta and Lemon Champagne Vinaigrette Recipe because it captures everything wonderful about summer in a dish. The fresh squash grilled just right, topped with tangy feta and drizzled with a bright, zesty vinaigrette—it’s light, flavorful, and comes together so quickly. I find it’s the perfect way to celebrate seasonal produce while impressing guests or elevating a simple weeknight meal.

Why You'll Love This Grilled Summer Squash with Feta and Lemon Champagne Vinaigrette Recipe

When I first made this recipe, I was blown away by the harmony of flavors. The smoky char from the grill brings out the natural sweetness of the summer squash, while the creamy saltiness of the feta adds a fantastic contrast. Then, the lemon champagne vinaigrette truly steals the spotlight with its bright acidity and subtle punch from the garlic and shallots. It’s a balance of tastes that feels fresh but indulgent at the same time.

This recipe is also incredibly straightforward, which is something I really appreciate. It only takes about 10 minutes from start to finish, which means I can whip it up even on busy days without feeling overwhelmed. Plus, the grilling step is just a quick sear on each side that locks in flavor and texture perfectly. I love how simple ingredients transform into something so elegant.

Honestly, this dish shines at a variety of occasions. Whether you’re hosting a casual barbecue, looking for a stunning side for a holiday meal, or craving a healthy summer salad, it hits the mark every time. I always keep this recipe in my back pocket because it’s such a crowd-pleaser yet feels special enough to serve when I want to impress without the hassle.

Ingredients You'll Need

A clear glass bowl sits on a white marbled surface filled with a mix of vegetables. The bottom layer consists of several yellow squash with smooth skin, some whole and some sliced lengthwise showing pale yellow insides. On top of this is a layer of dark green zucchini, also sliced lengthwise, contrasting with the yellow squash. Scattered on the top are chunks of purple-red onion, quartered to show their layered texture. The vegetables are lightly sprinkled with black pepper. photo taken with an iphone --ar 4:5 --v 7

The beauty of this Grilled Summer Squash with Feta and Lemon Champagne Vinaigrette Recipe lies in how a handful of simple, fresh ingredients come together to create layers of flavor and texture. Each one plays an essential role from the tender squash and grilled onions to the aromatic herbs and vibrant vinaigrette that ties it all together.

TIP : You'll find the full list of ingredients and measurements in the recipe card below

Olive oil: Adds richness and helps achieve those perfect grill marks without sticking.
Kosher salt: Enhances all the flavors naturally without overpowering them.
Black pepper: Offers a mild heat that balances the dish beautifully.
Zucchini and yellow squash: The star vegetables, providing the sweet, tender base of the recipe.
Red onion: Adds a subtle sharpness and slight crunch when grilled.
Patty pan squash: These charming little squash bring texture variety and visual appeal.
Feta cheese: The salty, creamy topping that contrasts perfectly with the smoky squash.
Fresh mint and basil: Bright herbal notes that add freshness and complexity.
Lemon juice & champagne vinegar: Combine to create a light, zesty vinaigrette bursting with brightness.
Garlic and shallot: Bring aromatic depth to the dressing.

Directions

Step 1: Preheat your grill to medium-high heat. I like to get it hot so that the squash achieves those beautiful, smoky grill marks that elevate the flavor.

Step 2: In a large bowl, gently toss together the olive oil, kosher salt, cracked black pepper, zucchini halves, yellow squash halves, red onion wedges, and halved patty pan squash. Make sure everything is evenly coated with oil and seasoning for consistent grilling.

Step 3: Arrange the squash in a single layer directly on the grill grates. Grill for about 5 minutes total, turning once halfway through, until nice char marks appear and the squash is tender but still has a bit of bite.

Step 4: Remove the grilled squash and onions from the grill and transfer them to a large serving platter. Slice the zucchini and yellow squash into approximately 1-inch pieces for easy eating.

Step 5: Crumble the sheet of feta cheese over the warm vegetables, then sprinkle with fresh mint and basil leaves to add brightness and freshness.

Step 6: Drizzle the salad generously with the lemon champagne vinaigrette made by whisking together lemon juice, champagne vinegar, olive oil, minced garlic, chopped shallot, salt, and pepper. Taste and adjust seasoning as needed before serving immediately.

Servings and Timing

This recipe makes about 6 servings, perfect for a family meal or sharing at a summer gathering. Prep time is a breeze—only around 5 minutes to cut and season the vegetables. The grilling itself is quick, roughly 5 minutes total, bringing your total time to about 10 minutes. There’s no resting or cooling needed; I love serving this dish warm or at room temperature so the flavors can shine immediately.

How to Serve This Grilled Summer Squash with Feta and Lemon Champagne Vinaigrette Recipe

The dish shows a colorful mix of grilled vegetables including green and yellow zucchini and charred red onion pieces, layered with scattered white crumbled cheese. Fresh green basil leaves are spread across the top, adding vibrant pops of color. The vegetables have varying textures, from soft smooth grilled surfaces to slightly crispy charred edges. The ingredients are laid out in a casual, natural way on a white marbled surface. A metal fork is visible on the bottom right side. photo taken with an iphone --ar 4:5 --v 7

I enjoy serving this vibrant summer salad as a colorful side dish alongside grilled meats, like lamb or chicken, because the bright vinaigrette cuts through richer flavors beautifully. It also makes a fantastic centerpiece for a vegetarian spread or mezze platter when paired with warm pita, hummus, and olives. The mix of textures and those fresh herbs really elevate whatever’s on your table.

For plating, I like to use wide, shallow bowls so the feta and herbs stay beautifully visible, giving a rustic yet elegant look. Garnishing with extra fresh mint and basil leaves adds a pop of green that’s as inviting as the flavor. I often drizzle a bit more vinaigrette at the table to keep it lively and fresh.

As for beverages, this dish pairs wonderfully with crisp white wines like Sauvignon Blanc or a dry Rosé. If you prefer something non-alcoholic, a sparkling lemonade or iced herbal tea complements the citrus notes in the vinaigrette perfectly. I find it works well for everything from casual family dinners on the patio to lively weekend parties.

Variations

If you want to mix things up, I’ve experimented with swapping out the zucchini for eggplant or adding slices of bell pepper for extra color and sweetness. You can even toss in some cherry tomatoes for a juicy burst that pairs beautifully with the vinaigrette.

For those following a vegan diet, simply omit the feta or use a plant-based cheese alternative that melts slightly over the warm squash. I also love sprinkling toasted pine nuts or slivered almonds on top for added crunch and richness, which work wonderfully if you want to avoid cheese altogether.

Another variation is to cook the squash on a stovetop grill pan if you don’t have an outdoor grill. Just make sure to preheat the pan and turn frequently to mimic that smoky char. You can also try roasting the squash in a hot oven if weather or equipment is a concern, though grilling adds that unmistakable flavor.

Storage and Reheating

Storing Leftovers

If you end up with leftovers (which is rare in my house), store them in an airtight container in the refrigerator. They’ll keep well for up to 3 days. I recommend placing the dressing separately if possible or adding extra vinaigrette just before serving again to keep the squash fresh and not soggy.

Freezing

I don’t generally recommend freezing this salad because the texture of the squash and fresh herbs can degrade once thawed. The feta and vinaigrette also lose their optimal flavors after freezing. If you do want to freeze grilled squash separately, place it in a freezer-safe container, but be prepared for a softer texture when reheated.

Reheating

To reheat leftovers, gently warm the squash in a skillet over medium heat for just a few minutes until heated through. Avoid the microwave if you want to preserve texture and flavor. Add fresh herbs and feta after reheating rather than warming them to keep their brightness intact. If the squash seems dry, a quick splash of olive oil or a touch more vinaigrette will revive the dish wonderfully.

FAQs

Can I use other types of squash in this recipe?

Absolutely! While I love using zucchini, yellow squash, and patty pan squash for their colors and textures, you can experiment with delicata, crookneck, or even eggplant for a different twist. Just adjust grilling time as needed for size and density.

Is this recipe suitable for meal prep?

Yes, definitely. I often make this in advance for lunches or dinners. Just store the vinaigrette separately and add it when you’re ready to eat, to keep the squash from getting soggy. It’s a refreshing, ready-to-go side or light main.

What can I use if I don’t have champagne vinegar?

Good question! You can substitute with white wine vinegar or even apple cider vinegar. They’ll give you a similar acidity and brightness without overpowering the delicate flavors in the dish.

How do I make the vinaigrette emulsify properly?

To get a smooth vinaigrette, whisk the lemon juice and champagne vinegar together first, then slowly drizzle in the olive oil while whisking vigorously. Adding garlic and shallots finely chopped helps it come together with great texture and depth of flavor.

Can this dish be served cold?

Yes, serving it at room temperature or lightly chilled is delightful, especially on hot summer days. Just keep in mind the herbs and vinaigrette flavors are most vibrant when fresh, so add those just before serving.

Conclusion

I truly hope you’ll give this Grilled Summer Squash with Feta and Lemon Champagne Vinaigrette Recipe a try soon. It’s one of those dishes that feels effortless but delivers a huge flavor payoff every time. Whether you’re entertaining or just want a fresh, healthy meal, this recipe is a guaranteed crowd-pleaser that celebrates the best of summer. Enjoy the ease, the brightness, and the deliciousness in every bite!