Hidden Veggie Tomato Pasta Sauce

Featured in: Warm Baked Goods

This velvety tomato sauce cleverly incorporates pureed carrots, zucchini, and fresh spinach into a classic Italian base. The vegetables simmer until tender before being blended completely smooth, creating a nutrient-rich sauce that even picky eaters will love.

Perfect over any pasta variety, this versatile sauce freezes beautifully for meal prep and can be customized with different herbs or a splash of cream for extra richness.

Updated on Thu, 15 Jan 2026 11:52:00 GMT
Smooth, creamy Hidden Veggie Tomato Pasta Sauce simmered with carrots, zucchini, and spinach, served over steaming spaghetti with fresh basil garnish.  Save
Smooth, creamy Hidden Veggie Tomato Pasta Sauce simmered with carrots, zucchini, and spinach, served over steaming spaghetti with fresh basil garnish. | olivedune.com

Last Tuesday my daughter announced she was officially done with vegetables, which sent me into a quiet panic at 4 PM. I had carrots, zucchini, and spinach wilting in the crisper drawer, so I did what any desperate parent would do and cooked them all down with onions and garlic. The kitchen smelled like an Italian grandmother had moved in, and when I emerged with that orange-red sauce, she licked her bowl clean and asked for seconds. Now it is the only pasta sauce she actually requests by name.

My neighbor came over last month while I was blending a batch, and she honestly thought I was making a fancy restaurant tomato sauce. When I told her about the three cups of vegetables hidden inside, she laughed and said her husband would never believe it. We ate it on my back porch with garlic bread and wine, and she texted me the next day that her kids had declared it better than jarred sauce.

Ingredients

  • 2 medium carrots: These add natural sweetness that balances the tomatoes perfectly
  • 1 medium zucchini: Practically disappears but adds body and creaminess
  • 2 cups fresh spinach: The secret nutrient boost that no one will ever detect
  • 1 medium onion: Creates the savory foundation that makes everything taste better
  • 2 cloves garlic: Mince it fresh because jarred garlic cannot compete here
  • 2 tablespoons olive oil: Use a good one since it carries all the flavors
  • 1 can crushed tomatoes (28 oz): San Marzano if you can find them for the best flavor
  • 2 tablespoons tomato paste: Concentrates the tomato flavor without being too acidic
  • 1 teaspoon dried oregano and basil: The classic Italian herbs that make it taste familiar
  • Salt and pepper: Season generously because the vegetables need it
  • 1/2 teaspoon sugar: Only if your tomatoes taste too sharp

Instructions

Sauté the aromatics:
Warm the olive oil in your largest saucepan over medium heat, then add the chopped onion and minced garlic. Let them soften until fragrant and translucent, about 3 minutes, stirring so nothing catches.
Soften the harder vegetables:
Add the carrots and zucchini to the pan, stirring occasionally for 5 to 7 minutes. They should start yielding to the spoon but do not need to be fully cooked yet.
Wilt the spinach:
Toss in the spinach and watch it collapse dramatically within 2 minutes. It might look like too much at first, but it cooks down to almost nothing.
Add the tomatoes and seasonings:
Pour in the crushed tomatoes and tomato paste, stirring until the paste dissolves completely. Sprinkle in the oregano, basil, salt, pepper, and sugar if using.
Simmer everything together:
Bring the sauce to a gentle bubble, then cover and reduce the heat to low. Let it simmer for 20 minutes, stirring occasionally so nothing sticks to the bottom.
Blend until silky:
Remove the pan from heat and let it cool slightly. Use an immersion blender right in the pan or work in batches with a countertop blender until absolutely smooth.
Finish and serve:
Return the sauce to low heat if needed and adjust the seasoning. Stir in Parmesan if you want, then pour over hot pasta and scatter fresh basil on top.
A vibrant bowl of Hidden Veggie Tomato Pasta Sauce ready to toss with penne, highlighting its rich color and comforting aroma.  Save
A vibrant bowl of Hidden Veggie Tomato Pasta Sauce ready to toss with penne, highlighting its rich color and comforting aroma. | olivedune.com

This recipe has saved me on countless weeknights when takeout felt like the only option. There is something deeply satisfying about watching a pile of raw vegetables transform into a sauce that makes everyone happy, and the way my kids now actually get excited about pasta night feels like a small victory.

Making It Your Own

I have tried adding bell peppers and even roasted eggplant to the vegetable mix, both of which worked beautifully. Sometimes I throw in a pinch of red pepper flakes when sautéing the garlic if I want a little warmth that cuts through the sweetness.

Batch Cooking Secrets

Double this recipe because it freezes surprisingly well and you will thank yourself later. I portion cooled sauce into freezer bags, press them flat so they stack neatly, and thaw one in warm water whenever I need dinner in ten minutes.

Serving Ideas

Beyond pasta, this sauce works beautifully on polenta, as a dipping sauce for mozzarella sticks, or even spooned over roasted chicken. It has become my go-to base for homemade pizza and the secret ingredient in my lasagna that people cannot quite identify.

  • Stir a spoonful into ricotta for stuffed shells
  • Mix with heavy cream for a pink vodka sauce variation
  • Layer it with eggplant and mozzarella for a vegetarian parmesan
Homemade Hidden Veggie Tomato Pasta Sauce pureed smooth, garnished with Parmesan, paired with a fork twirling a hearty pasta portion. Save
Homemade Hidden Veggie Tomato Pasta Sauce pureed smooth, garnished with Parmesan, paired with a fork twirling a hearty pasta portion. | olivedune.com

There is honest joy in serving something that nourishes people without them feeling like they are being healthy. Hope this brings as many peaceful dinners to your table as it has to mine.

Cooking Questions & Answers

Can I freeze this sauce?

Yes, this sauce freezes exceptionally well. Portion into airtight containers or freezer bags and store for up to 3 months. Thaw overnight in the refrigerator before reheating.

How do I make it creamy?

Add a splash of heavy cream or a tablespoon of butter after blending the sauce. Stir over low heat until incorporated for a richer, velvety texture.

Can I use fresh tomatoes instead?

Fresh tomatoes work well. Use roughly 3 pounds of ripe tomatoes, blanched and peeled, then crushed. You may need to adjust cooking time to achieve the desired consistency.

What pasta pairs best?

This sauce works with any pasta shape. Try it over spaghetti, penne, fusilli, or even use it as a base for lasagna or baked ziti.

How can I make it vegan?

Simply omit the Parmesan cheese or substitute with a plant-based alternative. The sauce is naturally vegan and packed with vegetables.

Hidden Veggie Tomato Pasta Sauce

Smooth Italian tomato sauce blended with carrots, zucchini, and spinach for added nutrition.

Prep Duration
15 min
Time to Cook
30 min
Overall Duration
45 min
Creator: Clara Moretti


Skill Level Easy

Cuisine Italian

Serves 6 Portions

Dietary Info Vegetarian-Friendly, Wheat-Free

What You Need

Vegetables

01 2 medium carrots, peeled and chopped
02 1 medium zucchini, chopped
03 2 cups fresh spinach, washed and roughly chopped
04 1 medium onion, chopped
05 2 cloves garlic, minced

Sauce Base

01 2 tablespoons olive oil
02 1 can (28 oz) crushed tomatoes
03 2 tablespoons tomato paste

Seasonings

01 1 teaspoon dried oregano
02 1 teaspoon dried basil
03 1/2 teaspoon salt, or to taste
04 1/4 teaspoon black pepper
05 1/2 teaspoon sugar (optional, to balance acidity)

Optional

01 1/4 cup grated Parmesan cheese
02 Fresh basil, for garnish

Steps

Step 01

Sauté Aromatics: Heat olive oil in a large saucepan over medium heat. Add onion and garlic, sauté until softened, about 3 minutes.

Step 02

Cook Hard Vegetables: Add carrots and zucchini. Cook for 5-7 minutes, stirring occasionally, until vegetables begin to soften.

Step 03

Wilt Spinach: Add spinach and cook until wilted, about 2 minutes.

Step 04

Add Tomato Base: Add crushed tomatoes and tomato paste. Stir to combine thoroughly.

Step 05

Season and Simmer: Season with oregano, basil, salt, pepper, and sugar if using. Bring to a simmer, then cover and cook on low heat for 20 minutes, stirring occasionally, until all vegetables are very tender.

Step 06

Puree Sauce: Remove from heat and let cool slightly. Using an immersion blender (or transfer to a blender in batches), puree the sauce until completely smooth.

Step 07

Finish and Serve: Return to heat if needed, adjust seasoning, and stir in Parmesan if desired. Serve hot over pasta, garnished with fresh basil.

Essential Tools

  • Large saucepan
  • Immersion blender or countertop blender
  • Cutting board and knife
  • Wooden spoon

Allergy Notice

Always review each component for allergens, and reach out to medical experts if you're uncertain.
  • Contains dairy if Parmesan is added
  • Naturally gluten-free; ensure pasta is gluten-free if needed
  • Always check labels on canned tomatoes and spices for unexpected allergens

Nutrition Breakdown (each portion)

These details are for general advice—please consult your healthcare provider for specific guidance.
  • Energy (kcal): 82
  • Lipids: 3 g
  • Carbohydrates: 14 g
  • Proteins: 2 g