
Smooth tomato sauce loaded with blended vegetables.
Sneaky Smooth Tomato Sauce
A silky tomato sauce that hides a load of cooked, blended vegetables in every spoonful—perfect for picky eaters and quick weeknight dinners.
If you want a dinner that tastes like classic tomato sauce but slips in an extra serving (or two) of vegetables, this is the short-cut to keep in your back pocket. The carrot and red pepper bring natural sweetness, zucchini adds body so the sauce feels substantial, and a handful of spinach disappears into the mix while boosting color and silkiness. The result is familiar enough for kids to accept, but layered and savory enough for grown-ups to enjoy with a sprinkle of cheese.
The method is intentionally forgiving and fast: roughly chop the veg so they cook quickly, sweat the onion and carrot until the onion is translucent, then add pepper, zucchini and garlic. A minute with tomato paste caramelizes its sugars and deepens the flavor, and deglazing with a little vegetable broth pulls every browned bit from the pan. After the crushed tomatoes, herbs and spinach simmer briefly, blitz the whole pot with an immersion blender (or cool slightly and use a countertop blender) until utterly smooth. Taste and adjust—sometimes a pinch of sugar balances the tomato’s brightness.
This sauce is a multi-tasking pantry ally: toss it with little pasta shapes for lunchboxes, swirl it through spaghetti with meatballs, use it as an easy lasagna layer, or spoon it over roasted vegetables. For toddlers or anyone who prefers extra creaminess, stir in a splash of milk or butter at the end. Leftovers thicken and mellow, so you can always thin the sauce with a little reserved pasta water when reheating.
Make a double batch and freeze in portions for busy nights—defrost in the fridge or warm straight from frozen in a saucepan. A quick tip: always re-taste after blending because the flavors concentrate; a final sprinkle of salt or extra basil at the end makes this hidden-veg sauce sing.
Ingredients
How to Make Hidden Veggie Pasta Sauce
- Roughly chop the carrot, red bell pepper, zucchini and yellow onion into 1-inch pieces so they cook quickly and blend easily.
- Heat the olive oil in a medium saucepan over medium heat until shimmering, then add the onion and carrot; sauté 4–5 minutes until the onion is translucent and the carrot begins to soften.
- Add the red bell pepper, zucchini and garlic and cook another 3–4 minutes until the vegetables are tender-crisp; stir in the tomato paste and cook 1 minute to caramelize and deepen flavor.
- Pour in the vegetable broth to deglaze the pan, scraping up any browned bits, then add the crushed tomatoes, baby spinach, dried oregano, dried basil, sugar, salt and black pepper.
- Bring the sauce to a gentle simmer, reduce heat to low, and simmer uncovered for 10 minutes to let the vegetables soften fully and the flavors meld.
- Cool the pot 5 minutes, then use an immersion blender to puree the sauce until very smooth; if you don’t have an immersion blender, carefully transfer the hot mixture in batches to a blender (vent the lid slightly) and puree until smooth.
- Return the blended sauce to low heat for 2–3 minutes to warm through and taste; adjust seasoning with a pinch more salt or a little extra sugar if too acidic and stir in half the parmesan for extra creaminess, if using.
- Serve over cooked pasta, rice or as a dipping sauce; finish each bowl with the remaining grated parmesan if desired and store leftovers in the fridge for up to 4 days or freeze for up to 3 months.
Recipe Card
Hidden Veggie Pasta Sauce
Smooth tomato sauce loaded with blended vegetables.

- Prep
- 15 min
- Cook
- 20 min
- Servings
- 4
Ingredients
Instructions
- Roughly chop the carrot, red bell pepper, zucchini and yellow onion into 1-inch pieces so they cook quickly and blend easily.
- Heat the olive oil in a medium saucepan over medium heat until shimmering, then add the onion and carrot; sauté 4–5 minutes until the onion is translucent and the carrot begins to soften.
- Add the red bell pepper, zucchini and garlic and cook another 3–4 minutes until the vegetables are tender-crisp; stir in the tomato paste and cook 1 minute to caramelize and deepen flavor.
- Pour in the vegetable broth to deglaze the pan, scraping up any browned bits, then add the crushed tomatoes, baby spinach, dried oregano, dried basil, sugar, salt and black pepper.
- Bring the sauce to a gentle simmer, reduce heat to low, and simmer uncovered for 10 minutes to let the vegetables soften fully and the flavors meld.
- Cool the pot 5 minutes, then use an immersion blender to puree the sauce until very smooth; if you don’t have an immersion blender, carefully transfer the hot mixture in batches to a blender (vent the lid slightly) and puree until smooth.
- Return the blended sauce to low heat for 2–3 minutes to warm through and taste; adjust seasoning with a pinch more salt or a little extra sugar if too acidic and stir in half the parmesan for extra creaminess, if using.
- Serve over cooked pasta, rice or as a dipping sauce; finish each bowl with the remaining grated parmesan if desired and store leftovers in the fridge for up to 4 days or freeze for up to 3 months.
Nutrition
- Carbohydrates
- 22
- Saturated Fat
- 1.3
- Sodium
- 750
- Fiber
- 5
- Unsaturated Fat
- 8.7
- Protein
- 7
- Fat
- 10
- Cholesterol
- 5
- Trans Fat
- 0
- Calories
- 215
- Sugar
- 9