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I love making Hidden Veggie Pasta Sauce when I want nutrition on the table without complaints. The vegetables blend so completely smooth into tomato sauce that there’s nothing to detect or pick out. It tastes rich and hearty, clinging to pasta like marinara but better. It’s sneaky enough to fool picky eaters and delicious enough that everyone actually asks for more.
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I make it for busy weeknights, meal prep Sundays, and family gatherings because it’s a crowd-pleaser that even kids love. The sauce stays fresh in the fridge for up to 5 days or freezes for up to 3 months, so I usually double the batch and freeze half for those nights when cooking from scratch isn’t happening.
Ingredients You’ll Need
You’ll need all the ingredients shown in the photograph below.
How to Make Hidden Veggie Pasta Sauce with Step-By-Step Instructions
Scroll down for the full recipe card containing a full printable recipe and measurements in both US customary and metric units.
I’ve been making batches of this for years, and it’s the easiest way to get vegetables into every bite without anyone noticing, and that kids or even a picky-eater will love!
Sauté the Veggies
Heat olive oil in a large pan or cast-iron skillet over medium heat until it shimmers slightly. Add the garlic and onion, and sauté for about 1 minute until fragrant. Stir in the black pepper, celery, carrots, red bell pepper, zucchini, thyme leaves, and red pepper flakes.
Cook until the vegetables are soft and translucent, about 8–10 minutes, stirring occasionally. Season with salt to taste and lower the heat to medium-low.
Simmer with Tomato Sauce
Pour in the roasted tomato sauce. Stir, cover, and let simmer for 15 minutes to deepen the flavors. The veggies should be completely tender at this point.
Blend Until Smooth
Remove the sauce from the heat and carefully transfer it to a high-speed blender. Blend on low, gradually increasing to high speed, until the texture is completely smooth, which should take about 1 minute. Be careful with the hot liquid.
Cook the Pasta
While the sauce simmers, bring a pot of salted water to a boil in a large pasta pot and cook the pasta until al dente according to package directions.
Reserve ½ cup of pasta water (you’re going to need it later), then drain the rest using a clip-on pasta strainer, if your pot doesn’t come with one.
Combine and Serve
Return the blended sauce to the pan. Add the cooked pasta and reserved pasta water, stirring with mini silicone-tipped tongs until the noodles are evenly coated.
Serve warm with your choice of topping like Parmesan cheese, fresh basil, or red pepper flakes. Enjoy!
Hidden Veggie Pasta Sauce
Equipment
- Cast iron skillet or large pan
Ingredients
- 3 tablespoons olive oil
- 2 yellow onions finely chopped
- 1 celery stalk diced
- ¾ cup shredded carrots
- 1 zucchini diced
- 1 red bell pepper diced
- 5 cloves garlic minced
- ¼ teaspoon coarse freshly cracked black pepper
- 1 pinch red pepper flakes
- Salt to taste
- 1 sprig fresh thyme leaves only
- 1 cup roasted tomato sauce
- 5 cups pasta any shape
Instructions
- Heat olive oil in a large skillet or cast-iron pan over medium heat.3 tablespoons olive oil
- Add the garlic and onion, and sauté for about 1 minute. Stir in the black pepper, celery, carrots, bell pepper, zucchini, thyme leaves, and red pepper flakes. Cook until the vegetables are soft and translucent, about 8–10 minutes. Season with salt to taste and lower the heat to medium-low.2 yellow onions, 1 celery stalk, ¾ cup shredded carrots, 1 zucchini, 1 red bell pepper, 5 cloves garlic, ¼ teaspoon coarse, 1 pinch red pepper flakes, 1 sprig fresh thyme, Salt
- Pour in the roasted tomato sauce. Stir, cover, and let simmer for 15 minutes to deepen the flavors.1 cup roasted tomato sauce
- Remove the sauce from the heat and carefully transfer it to a blender. Blend on low, gradually increasing to high speed, until the mixture is completely smooth (about 1 minute).
- While the sauce simmers, bring a pot of salted water to a boil and cook the pasta until al dente. Reserve ½ cup of pasta water, then drain the rest.5 cups pasta
- Return the blended sauce to the pan. Add the cooked pasta and reserved pasta water, stirring until the noodles are evenly coated.
- Serve warm with your choice of topping.
Notes
Nutrition
How to Store Leftovers
Store any remaining sauce separately from pasta in an airtight container or a mason jar in the fridge for up to 5 days, or freeze it in freezer-safe containers for up to 3 months.
The sauce reheats beautifully on the stovetop over low heat or in the microwave in 30-second intervals, stirring between each one. If you froze the sauce, thaw it overnight in the fridge before reheating, and add a splash of pasta water or vegetable broth if it’s too thick after defrosting.
What to Serve With Hidden Veggie Pasta Sauce
I usually serve this with garlic bread or a simple side salad with balsamic vinaigrette for a complete meal. You can add meatballs or spoon it over baked chicken breasts if you want protein, making it hearty enough for the whole family without extra fuss.
For a bigger spread, pair it with Caesar salad, breadsticks, or sautéed green beans with lemon and garlic. The smooth sauce works with just about anything you’d normally serve with marinara, and since the vegetables are already hidden in the sauce, you don’t need to worry about extra sides.
More Easy Recipes for You to Try at Home
Here are more family-friendly recipes that picky eaters actually finish without complaints.
