Zucchini Pasta Sauce is the creamiest and tastiest sauce for your pasta! Shredded zucchini, summer squash, and pesto make the best 30-minute summer pasta.

Zucchini Pasta Sauce over spaghetti in a pot ready to be served for dinner.

Zucchini Pasta Sauce

I don’t have a garden full of zucchini, but I have some amazing neighbors and friends that do. They gave us lots of zucchini, and I’ve used it in everything I’ve baked and cooked, from Gluten-Free Zucchini Muffins to this Healthy Zucchini Bread and these Enchilada Stuffed Zucchini Boats.

When my family wanted Creamy Pesto Pasta, I decided to put a spin on it and add in some of those veggies. Everyone was obsessed with what turned out to be this Zucchini Pasta Sauce!

This pasta is perfect for summer: it’s bright, fresh, and full of summer veggies like corn, summer squash, zucchini, and basil pesto. I can’t get enough of it!

All the ingredients in this recipe prepped out for easy assembly.

Ingredients

Here’s what we’ve got in this delicious Zucchini Pasta Sauce:

  • Butter: Adds a nice rich flavor; you can use olive oil instead.
  • Garlic: Fresh garlic tastes best, but jarred garlic works too.
  • Onion: Adds sweetness and some texture. Be sure to very finely dice so there aren’t crunchy pieces in the final dish.
  • Zucchini: Fresh is best; no need to peel.
  • Summer Squash: Adds color, texture, and flavor! No need to peel.
  • Heavy Cream: Makes it creamy!
  • Chicken Broth: Adds flavor; vegetable broth is good if you’d like this dish to be vegetarian,
  • Parmesan: Freshly grated melts best. I like to grab a block of cheese and grate it with a microplane.
  • Frozen Corn: Adds sweetness and crunch; fresh corn works too.
  • Thin Spaghetti: I like the texture of the thin spaghetti best. Make sure to weigh out 10 ounces; don’t use the entire package!
  • Basil Pesto: Adds fresh flavor; store-bought or homemade both work. Use the best possible pesto for the best possible flavor.

The veggies including onion, garlic, and zucchini being sautéed in a pot for this Zucchini Pasta Sauce.

How To Make Zucchini Pasta Sauce

  1. Prep Veggies: Shred zucchini and squash. Dice onion and mince garlic.
  2. Cook Pasta: Boil water, add salt, and cook spaghetti until almost done. Drain and set aside.
  3. Cook Onion and Garlic: Melt butter in a big pan over medium-high heat. Add onion and garlic, cook until golden.
  4. Add Veggies: Add zucchini and squash. Season with salt and pepper, cook until tender.
  5. Make Sauce: Lower heat. Stir in broth, cream, Parmesan, and corn. Simmer until thickened.
  6. Combine Pasta and Sauce: Add pasta to the pan. Toss until well coated and sauce thickens. Stir in pesto.
  7. Serve: Top with extra Parmesan and fresh herbs.

The cream and corn being added to the pot along with the cooked spaghetti noodles.

Zucchini Pasta Sauce Tips

  • Salt Pasta Water: Add 1 tablespoon of salt to boiling water before cooking pasta. This seasons the actual pasta which makes the dish much more flavorful!
  • Adjust Sauce: Keep extra cream, pesto, and chicken broth handy to make the sauce saucier if needed.
  • Use a Big Pan: Use a large skillet or pot to easily mix all the spaghetti with the sauce.
  • Grate Parmesan: Use a fine grater for light and melty cheese.
  • Grate Veggies Coarsely: Use a big hole grater for zucchini and squash so they don’t disappear in the sauce.
  • Undercook Pasta: Slightly undercook pasta as it will finish cooking in the sauce.

The Zucchini Pasta Sauce mixed in with the noodles and all tossed together for a creamy and delicious dinner!

What To Serve On The Side Of Zucchini Pasta

  1. Caesar Salad: This is the perfect classic salad for just about any pasta dish!
  2. Bruschetta: My absolute favorite summer appetizer!
  3. Roasted Veggies: Roasted broccoli or roasted asparagus make great sides.
  4. Appetizer Plate: Put out a board with cold cuts, cheeses, olives, and crackers.
  5. Grilled Chicken: If you want some more protein, serve chicken or steak on the side or add to the Zucchini Pasta Sauce.

A forkful of the pasta being held up showing all the yummy components to it.

Storage

Storage

This pasta is best right after cooking! Pasta will continue to soak up the surrounding sauce as it cools and stores.

  • Store Leftovers: Put in an airtight container in the fridge for 3-5 days.
  • Reheat: Warm in a pan and add a little more cream, stock, or pesto if needed.
  • Do Not Freeze: The dairy in the Zucchini Pasta Sauce can break when reheated.

More Easy Pasta Recipes:

5 from 5 votes

Zucchini Pasta Sauce

Zucchini Pasta Sauce is a creamy, flavorful summer favorite! With shredded zucchini, summer squash, and pesto, this 30-minute dish is a perfect go-to for fresh, easy pasta.
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Servings: 4 servings

Equipment

  • 2 large pots

Ingredients 
 

  • 3 tablespoons unsalted butter
  • 1 tablespoon finely minced garlic 3 cloves
  • 1 cup finely diced yellow onion 1 onion
  • 2 cups grated zucchini 1 medium zuccini
  • 1 cup grated summer squash 1 small squash
  • Salt and pepper
  • 3/4 cup heavy cream
  • 1/4 cup chicken broth
  • 1/2 cup finely grated Parmesan cheese see note 1
  • 1-1/2 cups frozen corn
  • 10 ounces thin spaghetti not the whole package
  • 1/3 cup fresh basil pesto see note 2
  • Fresh herbs like basil for topping

Instructions 

  • Shred the zucchini and summer squash using the large holes on a box/cheese grater. Dice onion and mince garlic.
  • Add 12 cups water to a large pot and bring to a boil. Add 1 tablespoon salt to season, and cook spaghetti according to package directions, subtracting 2 minutes. Drain pasta and set aside (do not rinse).
  • Melt butter in a large pot over medium-high heat. Add the onion and garlic, cooking until onion is golden, about 3โ€“4 minutes.
  • Add shredded zucchini and squash. Stir for 1 minute, then season with salt and pepper (I start with 1/4 teaspoon salt and 1/2 teaspoon pepper). Continue to cook until most liquid is absorbed and veggies are tender, about 3โ€“5 minutes.
  • Reduce heat to low. Add chicken broth, heavy cream, Parmesan cheese, and frozen corn. Stir and bring to a simmer, until thickened slightly, about 2โ€“3 minutes.
  • Add the hot drained pasta to the pot. Toss for 2โ€“3 minutes over medium heat until pasta is well coated and sauce thickens. Add pesto and toss again. Taste and adjust seasonings, adding more salt and pepper if needed. If sauce is too thick, add a splash of heavy cream, chicken broth, or more pesto.
  • Serve immediately, garnished with fresh herbs and additional Parmesan cheese.

Video

Recipe Notes

Note 1: Grab a block of Parmesan cheese and grate with a fine grater. This gives the cheese a super light texture, helping it melt beautifully into the sauce.
Note 2: Youโ€™ll find fresh pesto near the fresh (not dried) pasta or in the produce section of the store. My absolute favorite is Ranaโ€™sยฎ Basil Pesto. Otherwise I recommend making your own pesto!
Storage: This pasta is best right after cooking! However, you can store leftovers in an airtight container in the fridge for up to 3โ€“5 days. Do not freeze this pasta because the dairy can break when reheated.

Nutrition

Serving: 1serving | Calories: 714kcal | Carbohydrates: 78g | Protein: 20g | Fat: 37g | Saturated Fat: 19g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.3g | Cholesterol: 84mg | Sodium: 442mg | Potassium: 640mg | Fiber: 6g | Sugar: 7g | Vitamin A: 1561IU | Vitamin C: 19mg | Calcium: 254mg | Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Meet Chelsea


Hi there! Iโ€™m Chelseaโ€“the recipe developer, photographer, writer, and taste tester behind Chelseaโ€™s Messy Apron (although my little ones help me out quite a bit with the taste testing part!). I LOVE getting creative in the kitchen and then posting my creations here for you to enjoy.

Thanks again for stopping by!

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5 from 5 votes

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19 Comments

  1. Melissa says:

    Making this tonight. Has anyone successfully added protien? I have huge carnivores.

    1. Chelsea Lords says:

      I’d recommend adding some cooked rotisserie chicken! Toss it through at the end to warm through

  2. JILL says:

    5 stars
    Delicious

    1. Chelsea Lords says:

      So happy to hear it! ๐Ÿ™‚

  3. Chelsea says:

    5 stars
    I made this last night, oh my gosh it was good. So good i made it twice. Once for us and then decided to make another for my parents. My husband loved it and my mom could not believe how much flavor there was. Followed the recipe exactly. Thanks for the recipe!

    1. chelseamessyapron says:

      That is SO great to hear!! Thanks for leaving a comment and rating for the recipe ๐Ÿ™‚

  4. Christine says:

    you seriously can’t beat a quick-fix pasta, this looks awesome Chels!

  5. Beth says:

    This pasta looks so good with all that parmesan and zucchini! You make the best quick and easy recipes, Chelsea! Pinned!

  6. Pamela says:

    30 minutes for such an awesome happy zucchini meal? Yes, please!

  7. amanda says:

    Gotta try this on my kids! It looks delicious!

  8. Ashley says:

    I am a huge zucchini / summer squash lover so this sounds amazing!

  9. Michele says:

    yum, this looks really good !!! I eat pasta more nights than I care to admit haha! ๐Ÿ™‚ so I’m always looking for new ideas to keep things interesting… pinned to my PASTA board …needs to be my dinner one night this week! YUM!

  10. Gayle says:

    I love that you combined zucchini and squash in an easy dish. It’s a great way to use all of those farmer’s market veggies!