
Rotini Pasta Salad with Italian Dressing and Veggies
A classic American potluck pasta salad: springy rotini tossed in a punchy homemade Italian dressing with crunchy bell peppers, juicy cherry tomatoes, sharp red onion and salty black olives. It gets better as it chills, and it holds up for days.
- Prep
- 29 min
- Cook
- 20 min
- Wait
- 1 hr 10 min
- Total
- 1 hr 59 min
- Makes
- About 10 cups (8 side-dish servings)
Steps
Before you start
- Plan on at least 1 hour of chilling time. The salad tastes best after the flavors have had time to blend.
- Start the pasta water first, then make the dressing and chop the vegetables while it heats and cooks.
- Pasta soaks up dressing as it sits, so you will hold back some dressing to add just before serving.
- Drain the olives and pat the cherry tomatoes dry after washing so the salad isn't watery.
Boil the water
- Pour 4 quarts (3.8 L) cold water into a large pot and add 2 tablespoons Diamond Crystal kosher salt (17 g; see ingredient note for other salts).
- Cover and bring to a full, rolling boil over high heat.
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Ready when: Large bubbles break the surface constantly, even when stirred.
Tip: Salt the water generously. It is the only chance to season the pasta itself.
Shake the dressing
- In a jar with a tight lid, combine the olive oil, red wine vinegar, lemon juice, garlic, Dijon, honey, oregano, basil, 1 teaspoon salt, black pepper and red pepper flakes if using.
- Seal and shake hard for 20 seconds.
- Taste a drop on a spoon; it should taste bright and slightly too sharp, since the pasta will mellow it.
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Ready when: The dressing looks cloudy and creamy-thin, with no separate layer of oil.
Tip: Shake again right before using; it separates as it stands.
Prep the vegetables
- Dice the bell peppers into ½-inch (1.25 cm) pieces, halve the cherry tomatoes and pat them dry with a paper towel, and slice the red onion into very thin half-moons.
- Drain the olives in a sieve.
- Set everything aside together on the cutting board or in a medium bowl.
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Ready when: Pieces are roughly the same size as the rotini spirals so every forkful has a bit of everything.
Tip: If the raw onion is too strong for you, soak the slices in cold water for 5 minutes, then drain and pat dry.
Cook the rotini
- Add the rotini to the boiling water and stir right away so it doesn't stick.
- Cook uncovered at a steady boil, stirring occasionally, for 1 minute less than the package time, about 10 minutes.
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Ready when: Bite a spiral: it should be tender with a slight firmness at the very center. It will soften a little as it absorbs dressing.
Tip: Don't undercook. Cold pasta turns firmer, so go for tender-but-chewy.
Drain and cool
- Drain the pasta in a colander and rinse under cold running water for about 1 minute, tossing, until it is no longer warm to the touch.
- Shake the colander well and let it drain for 2 minutes more.
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Ready when: Pasta feels cool, and no water drips when you shake the colander.
Tip: Wet pasta waters down the dressing, so drain thoroughly.
Dress the pasta
- Transfer the pasta to a large bowl.
- Shake the dressing again and pour over about two-thirds of it (roughly ⅔ cup / 150 ml).
- Toss well to coat every spiral, then let stand for 10 minutes so the pasta absorbs the flavor.
- Leave the rest (about ¼ cup / 65 ml) in the jar.
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Ready when: Pasta looks glossy with only a thin film of dressing pooling at the bottom of the bowl.
Tip: Keep the remaining dressing in the jar for the final refresh.
Fold in the add-ins
- Add the bell peppers, cherry tomatoes, red onion, olives and Parmesan (if using) to the pasta.
- Fold gently with a large spoon or spatula for about 1 minute so the tomatoes don't burst.
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Ready when: Vegetables are evenly spread through the pasta with no clumps of cheese.
Chill the salad
- Cover the bowl tightly and refrigerate for at least 1 hour and up to 24 hours, stirring once halfway if you can.
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Ready when: The salad is cold all the way through, including the center of the bowl.
Refresh and serve
- Take the salad out, stir, and taste.
- Shake the reserved dressing and pour in some or all of it (about ¼ cup / 65 ml), starting with half, and toss until the pasta looks glossy again.
- Add a pinch of salt or pepper if needed.
- Serve cold or cool.
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Ready when: Pasta is shiny and well seasoned, tasting tangy but not sharp.
Tip: Salt after chilling, since cold dulls flavors.
Good to know
Tips
- Rinsing the pasta in cold water stops cooking and removes surface starch, so the salad doesn't clump.
- Reserve some dressing for serving. Cold pasta keeps absorbing it, and a final toss brings the salad back to life.
- Choose firm, ripe cherry tomatoes and pat them dry so they don't water down the dressing.
- To make it a main dish, add 1½ cups (about 250 g) cubed salami, grilled chicken or a drained can of chickpeas.
Make ahead
Make the salad up to 24 hours ahead through the chilling step and keep it covered in the fridge. Store the last ¼ cup (65 ml) of dressing separately and add it just before serving. For a potluck, transport it chilled.
Storage & reheating
Refrigerate in an airtight container for up to 4 days; the vegetables soften a little after day 2. Do not leave at room temperature for more than 2 hours (1 hour in hot weather). Not recommended for freezing, because the pasta turns mushy and the tomatoes and peppers become watery. Serve cold; if the pasta tastes dry, stir in a splash of olive oil and vinegar.
Substitutions
- extra-virgin olive oil → 1 cup (240 ml) bottled Italian dressing in place of the entire homemade dressing. Skip the oil, vinegar, lemon, garlic, mustard, honey, herbs, salt, pepper and flakes. Use about ¾ cup when dressing the pasta and the rest at serving.
- dried rotini pasta → fusilli, rotelle, farfalle or cavatappi. Use the same weight; adjust cooking time to the package.
- red wine vinegar → white wine vinegar or apple cider vinegar. Same amount; cider vinegar is slightly fruitier.
- Parmesan cheese → cubed mozzarella pearls or crumbled feta. Use about 1 cup; fold in gently when adding the vegetables.
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- Meal
- Lunch
- Cuisine
- American
- Main ingredient
- TomatoesBell PeppersPasta
- Diet
- VegetarianHalal
- Method
- Stovetop
- Quick & Easy
- EasyMake Ahead
- Occasion
- Potluck





