This is the pasta salad that disappears fast at every cookout: creamy, tangy, and packed with crunchy fresh vegetables in every bite. Tender rotini is tossed with juicy cherry tomatoes, crisp cucumber, sweet bell pepper, briny olives, and a rich, herby, mayo-and-sour-cream dressing that coats everything perfectly. Nutty Parmesan and fresh parsley finish it off with even more flavor. It’s the ultimate combination of creamy and crunchy, and it’s endlessly easy to make ahead, which makes it perfect for potlucks, barbecues, and busy weeknights alike.
What makes this pasta salad so satisfying is the contrast: cool, creamy dressing against crisp, crunchy vegetables, with briny olives and nutty Parmesan adding little pops of savory flavor throughout. The dressing itself is a simple mix of mayo, sour cream, a splash of acid, and a well-balanced blend of herbs and seasonings, so it’s rich but not heavy, and tangy without being sharp. It’s a reliable, well-loved side that goes with just about anything off the grill.
Why this works
A few simple things are what make this pasta salad so good, and they’re worth understanding.
The creamy dressing is built for balance. Combining mayonnaise and sour cream creates a rich, tangy base, while lemon juice (or red wine vinegar) adds brightness and olive oil rounds it out. Garlic powder, onion powder, dill, and Italian seasoning build a well-rounded, herby flavor, and a touch of sugar or honey is optional for balancing the tang if you like a slightly sweeter dressing. Whisking it together separately means it coats the pasta and vegetables evenly.
A mix of fresh, crunchy vegetables is what gives this salad its texture. Cherry tomatoes, cucumber, bell pepper, and red onion each bring their own crunch, sweetness, and color, while black olives add a briny, savory contrast. Together they turn a simple pasta salad into something much more vibrant and satisfying, with a different texture and flavor in nearly every bite.
Rotini is the ideal pasta shape for this dish. Its spirals and ridges are excellent at catching and holding onto the creamy dressing, so every bite is well-coated rather than pooling dressing at the bottom of the bowl. Cooking it al dente (and rinsing it to cool) keeps the texture firm enough to hold up well once dressed and chilled.
And Parmesan and fresh parsley are the finishing touches that tie it together. Freshly grated Parmesan adds a salty, nutty depth, while fresh parsley brings brightness and color. Both are added at the end so their flavor stays fresh and distinct.
What goes in
The ingredients split into the pasta salad base and the creamy dressing.
For the pasta salad, you’ll need rotini pasta, cherry tomatoes, cucumber, yellow bell pepper, red onion, sliced black olives, freshly grated Parmesan cheese, and fresh parsley.
For the creamy dressing, you’ll need mayonnaise, sour cream, lemon juice or red wine vinegar, olive oil, garlic powder, onion powder, dried dill, Italian seasoning, black pepper, salt, and optional sugar or honey.
A few notes. Cook the rotini al dente so it holds its texture once mixed with the dressing. Dice the vegetables in similar, bite-sized pieces so every forkful gets a good mix. Use freshly grated Parmesan rather than pre-shredded for the best flavor and melt into the dressing. And the sugar or honey in the dressing is optional, add it if you prefer a touch of sweetness to balance the tang.
How to make it
Cook the rotini in a large pot of salted boiling water until al dente, according to the package instructions. Drain and rinse under cold water to stop the cooking and cool the pasta.
While the pasta cooks (or after), prepare the vegetables: halve the cherry tomatoes, dice the cucumber and bell pepper, and thinly slice or dice the red onion.
In a small bowl, whisk together the mayonnaise, sour cream, lemon juice (or red wine vinegar), olive oil, garlic powder, onion powder, dill, Italian seasoning, black pepper, salt, and sugar or honey (if using) until smooth and well combined.
In a large bowl, combine the cooled pasta, cherry tomatoes, cucumber, bell pepper, red onion, and black olives.
Pour the dressing over the pasta and vegetables, and toss well until everything is evenly coated.
Fold in the Parmesan cheese and fresh parsley.
Cover and refrigerate for at least 30 minutes before serving, to let the flavors meld. Taste and adjust the seasoning if needed before serving.

Tips, serving, and storing
A few things help. Rinse the cooked pasta under cold water so it doesn’t continue cooking or turn mushy once dressed. Dice the vegetables evenly for a balanced bite every time. Whisk the dressing separately before adding it, so it’s smooth and evenly distributed rather than clumping. And let the salad chill for at least 30 minutes, it tastes even better once the flavors have had time to meld.
A couple more. If the salad seems dry after chilling (pasta tends to absorb dressing over time), stir in a spoonful of extra mayo or a splash of lemon juice to freshen it up before serving. And feel free to swap in other crunchy vegetables you have on hand, like celery or radishes, to make it your own.
This pasta salad is a fantastic side for barbecues, potlucks, picnics, and holiday spreads, and it pairs beautifully with grilled chicken, burgers, hot dogs, or steak. It also makes a satisfying light lunch on its own. Because it’s best served cold or at room temperature, it’s a great make-ahead dish that travels well.
For storing, keep it in an airtight container in the fridge for up to 3 to 4 days. The pasta will continue to absorb some of the dressing as it sits, so give it a good stir (and add a little extra dressing if needed) before serving leftovers. I wouldn’t recommend freezing this one, since the creamy dressing and fresh vegetables don’t hold up well to thawing.
This makes about 8 servings as a side. Creamy, crunchy, tangy, and loaded with fresh vegetables, this pasta salad is exactly the kind of reliable, well-loved side dish that earns a permanent spot in your recipe rotation.
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Creamy Crunchy Pasta Salad
Tender rotini tossed with juicy cherry tomatoes, crisp cucumber, sweet bell pepper, briny olives, and a rich, herby mayo-and-sour-cream dressing, finished with Parmesan and fresh parsley. Creamy, crunchy, and perfect for potlucks and cookouts.
- Total Time1 hour
- Yield8 servings 1x
- DietVegetarian
Ingredients
For the Pasta Salad
- 12 oz rotini pasta
- 1 1/2 cups cherry tomatoes (halved)
- 1 large cucumber (diced)
- 1 yellow bell pepper (diced)
- 1/2 small red onion (thinly sliced or diced)
- 3/4 cup sliced black olives
- 1/3 cup freshly grated Parmesan cheese
- 1/4 cup fresh parsley (chopped)
For the Creamy Dressing
- 3/4 cup mayonnaise
- 1/2 cup sour cream
- 2 tbsp lemon juice or red wine vinegar
- 1 tbsp olive oil
- 1 tsp garlic powder
- 1 tsp onion powder
- 1 tsp dried dill
- 1 tsp Italian seasoning
- 1/2 tsp black pepper
- 1/2 tsp salt (or to taste)
- 1 tsp sugar or honey (optional)
Instructions
- Cook the Pasta: Cook the rotini in a large pot of salted boiling water until al dente, according to package instructions. Drain and rinse under cold water to cool.
- Prep the Vegetables: Halve the cherry tomatoes, dice the cucumber and bell pepper, and thinly slice or dice the red onion.
- Make the Dressing: In a small bowl, whisk together the mayonnaise, sour cream, lemon juice or vinegar, olive oil, garlic powder, onion powder, dill, Italian seasoning, black pepper, salt, and sugar or honey (if using) until smooth.
- Combine: In a large bowl, combine the cooled pasta, cherry tomatoes, cucumber, bell pepper, red onion, and black olives.
- Dress: Pour the dressing over the pasta and vegetables and toss well until evenly coated.
- Finish: Fold in the Parmesan cheese and fresh parsley.
- Chill: Cover and refrigerate at least 30 minutes before serving so the flavors meld. Taste and adjust seasoning before serving.
Notes
Rinse the cooked pasta under cold water so it doesn’t continue cooking or turn mushy. Dice the vegetables evenly for a balanced bite. Whisk the dressing separately before adding so it distributes evenly. Chill at least 30 minutes for the best flavor. If the salad seems dry after chilling, stir in extra mayo or a splash of lemon juice to freshen it up. Swap in other crunchy vegetables like celery or radishes if you like. Keeps 3 to 4 days refrigerated (stir and add dressing as needed); don’t freeze. Note: the source provided only an ingredient list with no method or servings/times, so the method, servings (8), and times here are composed and estimated.
- Prep Time: 20 minutes
- Cook Time: 10 minutes
- Category: Side Dish
- Method: No-Cook
- Cuisine: American




