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Green Olive Pesto and Squash Spaghetti Recipe

Published: Sep 27, 2026 by Ivy · This post may contain affiliate links · Leave a Comment

Jump to Recipe· 4.3 from 25 reviews

If you’re craving something fresh, vibrant, and packed with bright, zesty flavors, this Green Olive Pesto and Squash Spaghetti Recipe is your new go-to. It brings together the briny punch of green olives with the herbal freshness of parsley and basil, all melded into a luscious pesto that perfectly coats tender spaghetti and sweet, tender yellow squash. Plus, the crisp panko topping adds a delightful crunch that makes every bite truly unforgettable. This dish feels like sunshine on a plate and is just the right blend of comforting and lively.

Ingredients You'll Need

A clear glass bottle of white wine labeled

Don’t be fooled by the simplicity of these ingredients – each one plays a starring role in creating a symphony of flavors and textures. From the savory olives to the nutty almonds and the fresh herbs, every item adds something essential to this dish's personality.

  • 1 cup pitted green olives: The heart of the pesto, giving it a distinctive salty, tangy depth.
  • ½ cup fresh parsley leaves: Adds bright, slightly peppery notes and vibrant green color.
  • ½ cup fresh basil leaves: Brings a sweet, aromatic touch that complements the olives perfectly.
  • ¼ cup blanched slivered almonds: For a subtle crunch and richness that balances the other flavors.
  • 2 tablespoons parmesan cheese: Adds umami and a creamy texture to the pesto.
  • Zest and juice of 1 lemon: Essential for that fresh, citrusy zing that lifts the whole dish.
  • ½ teaspoon salt: Enhances all the ingredients without overpowering the delicate balance.
  • ⅓ cup olive oil: Provides richness and ties everything together smoothly.
  • 1 pound spaghetti: The classic base that carries the flavors effortlessly.
  • 2 tablespoons olive oil (divided): For sautéing the squash and toasting the panko breadcrumbs.
  • 2 yellow squash (sliced): Adds sweetness and a tender bite contrasting beautifully with the pesto.
  • Pinch of salt: To season the squash and the breadcrumb topping.
  • ¼ cup panko breadcrumbs: For a golden, crispy finish with a lovely texture contrast.
  • 1 clove garlic (minced): Gives a punch of warmth and flavor to the breadcrumbs.
  • ½ teaspoon dried oregano: Introduces a subtle herbal earthiness in the topping.
  • Zest of ½ lemon: Brightens the crispy topping with a burst of citrus aroma.
  • Fresh basil leaves (for garnish): Adds freshness and a bit of beauty for serving.

How to Make Green Olive Pesto and Squash Spaghetti Recipe

Step 1: Prepare the Green Olive Pesto

Start by tossing the green olives, fresh parsley, basil, slivered almonds, parmesan, lemon zest, lemon juice, and salt into your food processor. Pulse everything until the ingredients start to break down and combine. Then, keep the motor running and slowly drizzle in the olive oil, blending until the pesto reaches a chunky yet spreadable consistency. This sauce is the soul of the dish—a perfect balance of tangy, herbal, and nutty flavors.

Step 2: Cook the Spaghetti

Bring a large pot of salted water to a boil and cook the spaghetti according to the package directions until al dente. Drain the pasta but save a little of the pasta water to help loosen the pesto later. Setting aside this liquid is an essential trick to get the sauce to cling beautifully to each strand.

Step 3: Sauté the Squash

While the pasta is cooking, heat one tablespoon of olive oil in a skillet over medium heat. Add the sliced yellow squash, season with a pinch of salt, and sauté for about 3 to 4 minutes until tender but still slightly crisp. These tender slices will add a pleasant sweetness and soft texture that contrasts with the robust pesto.

Step 4: Make the Crispy Topping

Remove the squash and add the remaining tablespoon of olive oil to the same skillet. Toss in the panko breadcrumbs, minced garlic, dried oregano, lemon zest, and a pinch of salt. Cook, stirring frequently, until the panko turns a gorgeous golden brown and smells toasty. This topping gives the whole dish a satisfying crunch and an extra hit of flavor.

Step 5: Combine Everything

Return the drained spaghetti to its pot. Add the freshly made pesto and sautéed squash, tossing everything together. If needed, splash in a bit of the reserved pasta water to keep the pasta moist and ensure every strand is coated with that luscious pesto. Then, serve into individual bowls, topping each portion with the crisp panko, a few fresh basil leaves, and perhaps an extra sprinkle of parmesan if you like.

How to Serve Green Olive Pesto and Squash Spaghetti Recipe

A white bowl contains a dish with three main layers: the bottom layer is spaghetti noodles mixed with green pesto sauce, giving a textured, vibrant look; the middle layer has golden brown toasted breadcrumbs sprinkled over the noodles; the top layer is decorated with several grilled slices of yellow squash with light char marks, and fresh green basil leaves placed in between. The bowl sits on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Fresh basil leaves not only add a burst of vibrant color but elevate the freshness of the dish when sprinkled on top. A little extra parmesan cheese or a light drizzle of olive oil just before serving also takes it to the next level. These simple garnishes give your plate that chef-style finish without any fuss.

Side Dishes

This spaghetti pairs beautifully with crisp, green salads tossed with lemon vinaigrette or a simple arugula salad dotted with cherry tomatoes and toasted pine nuts. Light, lemony roasted vegetables like asparagus or green beans can also complement the flavors wonderfully without competing.

Creative Ways to Present

For a fun twist, serve this recipe in hollowed-out yellow squash boats for a playful presentation that doubles as an edible serving dish. Another idea is to sprinkle the crispy panko topping just before serving to maintain that perfect crunch, or serve the pesto on the side so guests can customize their portions.

Make Ahead and Storage

Storing Leftovers

If you have any leftovers from this Green Olive Pesto and Squash Spaghetti Recipe, store them in an airtight container in the refrigerator. The flavors deepen after a day, but it’s best eaten within 2 days for optimal texture and freshness.

Freezing

While the pesto itself freezes well in a sealed container or ice cube trays, the spaghetti with squash and crispy topping doesn’t freeze as nicely due to texture changes. For freezing, keep the pesto separate and simply make fresh pasta and squash when ready to enjoy the dish again.

Reheating

Reheat leftovers gently in a skillet over low heat with a splash of water or olive oil to prevent drying out. Avoid microwaving if you want to preserve the texture of the squash and the vibrant flavor of the pesto.

FAQs

Can I use other types of olives for this pesto?

You can experiment with black olives or Kalamata olives, but keep in mind the flavor will be different—black olives are milder and less tangy, so the pesto might lose some of its signature brightness.

Is there a vegetarian or vegan option for this recipe?

Absolutely! To make it vegan, simply omit the parmesan cheese or replace it with a plant-based alternative or nutritional yeast, which adds similar umami notes.

Can I use other pasta shapes besides spaghetti?

Yes! While spaghetti works beautifully here, feel free to use linguine, fettuccine, or even penne if you prefer. Just adjust cooking times according to the package instructions.

How spicy is this Green Olive Pesto and Squash Spaghetti Recipe?

This recipe has no added heat, focusing instead on bright, fresh, and savory flavors. If you love a little kick, you can add a pinch of red pepper flakes to the pesto or sprinkle on top when serving.

Can I prepare the pesto in advance?

Yes! The pesto can be made a day ahead and stored in the refrigerator in a tightly sealed container. To keep it green and fresh, pour a thin layer of olive oil over the surface before sealing.

Final Thoughts

If you’re looking for a dish that feels both comforting and exciting, the Green Olive Pesto and Squash Spaghetti Recipe is a shining star worth trying right away. It’s a wonderful way to enjoy fresh, vibrant ingredients in a simple yet stunning dish that’s certain to become a favorite for your weeknight repertoire or special occasions alike. Give it a whirl and prepare to be delighted with every bite!

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Green Olive Pesto and Squash Spaghetti Recipe

Green Olive Pesto and Squash Spaghetti Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.3 from 25 reviews
  • Author: Ivy
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 4 servings
  • Category: Main Course
  • Method: Stovetop
  • Cuisine: Italian
  • Diet: Vegetarian
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Description

A vibrant and flavorful Green Olive Pesto paired with tender sautéed yellow squash and al dente spaghetti, topped with crispy seasoned panko breadcrumbs and fresh basil for a delightful vegetarian pasta dish ready in just 35 minutes.


Ingredients

Green Olive Pesto

  • 1 cup pitted green olives
  • ½ cup fresh parsley leaves
  • ½ cup fresh basil leaves
  • ¼ cup blanched slivered almonds
  • 2 tablespoons parmesan cheese
  • Zest and juice of 1 lemon
  • ½ teaspoon salt
  • ⅓ cup olive oil

Squash and Pasta

  • 1 pound spaghetti
  • 2 tablespoons olive oil (divided)
  • 2 yellow squash, sliced
  • Pinch of salt
  • ¼ cup panko breadcrumbs
  • 1 clove garlic, minced
  • ½ teaspoon dried oregano
  • Zest of ½ lemon
  • Fresh basil leaves (for garnish)


Instructions

  1. Prepare the pesto: In a food processor, combine green olives, fresh parsley, fresh basil, blanched slivered almonds, parmesan cheese, lemon juice, lemon zest, and salt. Pulse to combine. With the motor running, slowly drizzle in olive oil until the mixture achieves a chunky pesto consistency.
  2. Cook the spaghetti: Bring a large pot of salted water to a boil. Add the spaghetti and cook according to package instructions until al dente. Drain the pasta, reserving some pasta water, and set aside.
  3. Sauté the squash: While the pasta cooks, heat 1 tablespoon of olive oil in a skillet over medium heat. Add the sliced yellow squash, season with a pinch of salt, and cook until tender, about 3 to 4 minutes. Remove the squash from the skillet and set aside.
  4. Toast the breadcrumbs and aromatics: Add the remaining tablespoon of olive oil to the skillet. Stir in the panko breadcrumbs, minced garlic, dried oregano, lemon zest, and a pinch of salt. Cook, stirring frequently, until the breadcrumbs turn golden brown. Remove from heat.
  5. Combine pasta and pesto: Return the drained spaghetti to the pot. Toss with the prepared green olive pesto, sautéed squash, and a small amount of reserved pasta water to loosen the sauce if needed.
  6. Serve: Divide the pesto spaghetti and squash among serving bowls. Top each serving with fresh basil leaves and the toasted breadcrumb mixture for added texture and flavor.

Notes

  • Reserve pasta water to adjust sauce consistency as desired.
  • You can substitute slivered almonds with pine nuts if preferred.
  • Use gluten-free pasta and breadcrumbs to make this dish gluten-free.
  • Parmesan cheese adds depth but can be omitted or substituted with a vegetarian hard cheese if desired.
  • Leftover pesto can be stored in an airtight container in the fridge for up to 3 days.

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Hey, I’m Ivy!

I’m a 28-year-old mom to my little prince, Pitter, who loves cooking and exploring flavors from around the world. What started in my home kitchen is now a space where I share simple, global-inspired recipes made with love.

 

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