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Summer Squash Pasta Salad with Fresh Basil and Lemon

This light, healthy summer squash pasta salad is full of zucchini and yellow squash, tossed in a bright lemon-garlic dressing. Quick-pickled shallots and fresh parsley lift the flavors, making this a refreshing summer side or light main that celebrates seasonal produce.

a large frosted bowl with summer squash pasta salad and a serving spoon on a brown wooden surface in front of a bowl of fresh vegetables.

Pasta salad can be reliably bright and satisfying when built with the right ingredients. Tender summer squash, quick-pickled shallots, lemon and garlic dressing, and a handful of fresh parsley come together for a dish that’s light but flavorful. This version focuses on zucchini and yellow squash for color and texture, and favors a small pasta shape so every bite carries a balance of squash and dressing.

Cooking your Summer Squash – Methods

Grilling summer squash adds a smoky char that elevates the salad, but there are several simple ways to cook it well. Choose the method that fits your kitchen and timing:

  • Grilled – Slice squash lengthwise about 1/4 inch thick, brush with oil, season with salt and pepper, and grill 3–4 minutes per side over a hot fire until slightly charred and tender.
  • Sautéed – Heat 2 tablespoons oil in a skillet, arrange seasoned slices in a single layer, brown on one side, flip and finish until tender.
  • Oven-roasted – Toss sliced squash with oil, salt and pepper, spread on a baking sheet, and roast at 375°F (190°C) for about 10 minutes, flipping once, until edges begin to caramelize.
  • Grill pan – Preheat a heavy grill pan until very hot, lightly oil the squash, and cook in a single layer 3–4 minutes per side for the same charred flavor without an outdoor grill.
a white platter of grilled summer squash with a sliced lemon

Ingredients

The salad relies on a few complementary components. Use fresh, ripe produce and a small pasta shape for the best texture and flavor distribution.

a serving tray with two summer squash, a bowl of uncooked pasta, a lemon, parsley, a shallot, olive oil, apple cider vinegar, and salt and pepper
  • Pasta – Small shapes like ditalini or small shells work well because they mix evenly with diced squash.
  • Summer squash – A mix of zucchini and yellow squash is ideal for color and balanced flavor. Use two medium or three small squash.
  • Shallot – One large shallot, thinly sliced for quick pickling. A mild onion will work in a pinch, but shallots offer a gentler bite.
  • Parsley – Fresh parsley is recommended for a mild, fresh herb note. If using dried parsley, add it to the dressing so it rehydrates; use about half the fresh amount.
  • Apple cider vinegar – For the quick-pickle brine; it contributes a mild fruity tang.
  • Sugar – Balances the vinegar in the quick-pickled shallots.
  • Lemon – Both zest and juice are used to make a bright lemon-garlic dressing.
  • Garlic – A small amount to add depth to the dressing without overpowering the lemon.
  • Olive oil, salt and pepper – Essential for seasoning at each step so the final salad is well balanced.

Let’s Cook – How To

This salad benefits from a little planning since several components are prepared separately, but it’s easy to assemble and can be made a few hours ahead. Serve chilled or at room temperature.

a pot pouring vinegar over shallots in a jar beside a white cutting board with grilled summer squash over a third image of a large frosted bowl with pasta, squash, shallots, and parsley on top
  1. Bring a large pot of well-salted water to a rolling boil for the pasta. The water should taste like the sea to season the pasta properly.
  2. For the quick pickled shallots: combine apple cider vinegar, sugar, and 1 teaspoon kosher salt in a small pan and bring to a fast boil. Meanwhile, thinly slice the shallot.
  3. Place the sliced shallots in a heatproof jar or container and pour the hot brine over them until fully submerged. Press them down if needed and let cool to room temperature while you finish the rest.
  4. Add the pasta to the boiling water and cook until al dente according to package instructions. Drain and briefly rinse with cool water to stop cooking; spread the pasta on a baking sheet if you want it to cool faster.
  5. While the pasta cooks, slice the zucchini and yellow squash about 1/4 inch thick. Brush both sides with olive oil, season with salt and pepper, and cook using your chosen method (grill, grill pan, sauté, or roast) until tender and lightly charred. Let cool slightly, then dice into small cubes.
  6. In a small bowl, zest and juice the lemon. Combine 2 tablespoons lemon juice, lemon zest, minced garlic, a pinch of salt (about 1/8 teaspoon), and 3 tablespoons olive oil. Whisk until emulsified.
  7. Drain the pickled shallots, roughly chop, and add them to a large mixing bowl with the cooled pasta, diced squash, and chopped parsley.
  8. Pour the lemon-garlic dressing over the salad and toss thoroughly, scraping the bottom of the bowl to combine evenly. Taste and adjust with salt and pepper as needed.
  9. Cover and chill for at least one hour to let flavors meld. The salad keeps well for up to three days in the refrigerator.

Pro tip: If you enjoy pickled shallots, make extra. They keep in the refrigerator, tightly sealed, for several weeks and are great on salads, sandwiches, and grilled meats.

To garnish, try a sprinkle of crumbled feta or toasted sunflower seeds for texture and a salty contrast. Both add a pleasant finish, but the salad is also great plain.

a bowl of pasta salad with a silver serving spoon topped with crumbled white cheese and sunflower seeds on a wooden table.

FAQ’S

Can I use prepared pickled shallots or onions?

Yes. If you have a brand you like or a jar of already pickled onions, they make a convenient shortcut. Drain and chop before adding them to the salad.

How do I use dried parsley instead of fresh?

Add dried parsley to the dressing so it can rehydrate a little while the salad chills. Use about half the volume you would of fresh parsley, since dried herbs are more concentrated.

Can I serve this warm?

The salad is delicious chilled, but it can be served at room temperature or slightly warm if you prefer. Flavors are most integrated after chilling, but it’s still tasty right away.

Eat & Enjoy

If you’re already a fan of pasta salads, this summer squash version is a bright, fresh addition to your rotation. If you’re just discovering how flexible and flavorful pasta salads can be, this recipe is a great starting point. It showcases seasonal squash, a lively lemon-garlic dressing, and quick-pickled shallots for contrast. Enjoy—and happy eating!

Recipe Snapshot

  • Prep time: 10 minutes
  • Cook time: 35 minutes
  • Total time: 45 minutes
  • Serves: 6
  • Calories (approx.): 265 kcal per serving

Ingredients (summary)

  • 1 1/2 cups uncooked small pasta
  • 2 medium summer squash (zucchini and/or yellow squash)
  • 1 large shallot
  • 1/2 cup apple cider vinegar
  • 1 medium lemon (zest and juice)
  • 2 tbsp chopped parsley
  • 1 large garlic clove
  • 5 tbsp olive oil
  • 1 tbsp sugar
  • 2 1/4 tsp kosher salt, divided, plus extra for pasta water
  • 1/2 tsp black pepper

Instructions (summary)

  1. Bring a large pot of well-salted water to a boil and cook pasta until al dente; drain and cool.
  2. Make a hot brine with apple cider vinegar, sugar and 1 tsp salt; pour over sliced shallots to quick-pickle and cool.
  3. Cook sliced squash by grilling, sautéing, roasting, or using a grill pan until tender; dice.
  4. Whisk lemon zest, 2 tbsp lemon juice, minced garlic, a pinch of salt and 3 tbsp olive oil into a dressing.
  5. Combine cooled pasta, diced squash, chopped parsley and drained pickled shallots. Toss with dressing, season to taste, and chill before serving.

Notes: Use your favorite small pasta shape and adjust salt to taste. This salad keeps well for several days and is great to prepare ahead for gatherings.