tagAlt.Zucchini and Onion Sauce Recipe

Creamy Zucchini and Caramelized Onion Pasta Sauce

Rich, velvety, and bursting with flavor, this sauce turns ordinary pasta into a celebration of summer vegetables.
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    • ( Scored 5 on 1 reviews )

Nina:

I'm always on the lookout for a new way to use up the tons of zucchini I have growing, and since I love pasta, this is a natural fit!

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tagAlt.Zucchini and Onion Sauce Recipe

When summer's bounty brings a surplus of zucchini, there’s nothing like transforming them into a luscious, quick pasta sauce that shines on any table. This recipe makes the most of fresh, seasonal vegetables, requiring minimal effort for maximum flavor—perfect for those relaxed evenings when you crave something delicious but easy.

This vibrant sauce is a true celebration of Mediterranean cuisine, uniting the subtle sweetness of caramelized onions with the tender texture of grated zucchini. Finished with a generous sprinkle of Parmesan and a dash of robust extra-virgin olive oil, it creates a creamy, aromatic embrace for your favorite pasta. This dish is not only a fantastic way to use up excess zucchini from the garden, but also an excellent introduction to the simplicity and elegance of traditional Italian cooking.

Whether tossed with spaghetti, penne, or any shape you prefer, this sauce delivers a sophisticated flavor profile that’s sure to impress family and guests alike. Dive into the history and joy of Italian summer with every bite!

Ingredients

for 4 servings

Zucchini and Onion Sauce ingredients

  • Zucchini 3
  • Onion 1 (yellow, red or white)
  • Extra-virgin olive oil as needed
  • Basil (Leaves) as needed
  • White wine 1 cup
  • Milk 1.5 cup
  • Parmesan cheese (Grated) as needed

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Preparation

for 4 servings

Step

1

Of 2

Start the Sauce with Aromatics

Begin by thinly slicing a sweet onion and coarsely grating fresh zucchini using a box grater. Heat 2 tablespoons of high-quality extra-virgin olive oil in a medium skillet over medium heat. Add the sliced onion, sautéing until it turns golden and fragrant—this caramelization unlocks a deep sweetness that forms the base of the sauce. Next, introduce the grated zucchini and a pinch of sea salt, stirring to blend the flavors.

Continue to sauté until the vegetables are lightly browned and begin to soften. Pour in a splash of dry white wine—a classic Italian touch—and allow it to cook off, releasing any browned bits from the pan. Toss in fresh basil leaves for an aromatic lift, then reduce the heat to low, letting the mixture simmer gently until the zucchini and onion are fully tender and most of the liquid has evaporated.

Step

2

Of 2

Enrich the Sauce and Combine with Pasta

Raise the heat back to medium and season the sauce with additional salt to taste. Pour in a small amount of milk to add creaminess, stirring continuously as the sauce reduces to a silky consistency.

Fold in a generous handful of finely grated Parmesan cheese and drizzle with another touch of extra-virgin olive oil for richness and a glossy finish.

Toss the sauce with freshly cooked pasta—either dried or homemade—ensuring each strand is well coated. Serve immediately, garnishing with extra cheese and fresh basil if desired, for a truly irresistible summer pasta experience.

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Filippo Bartolotta

Filippo Bartolotta

...Great Italian Goodies!

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Reviews

Nina Thursday 16th of April 2020

Quick and easy

I'm always on the lookout for a new way to use up the tons of zucchini I have growing, and since I love pasta, this is a natural fit!

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