A refreshing, make-ahead pasta salad with a creamy, tangy dressing, crisp vegetables, and optional proteins. Ideal for picnics, potlucks, and easy weeknight sides.
Bring a large pot of salted water to a boil. Add pasta and cook until al dente according to package directions. Drain and rinse under cold water to cool and stop cooking. Drain well and transfer to a large bowl.
Chop tomatoes, cucumber, bell pepper, onion, and herbs. Add vegetables to the cooled pasta and toss to combine.
Whisk together mayonnaise, sour cream (or Greek yogurt), apple cider vinegar, Dijon mustard, honey, garlic powder, salt, and pepper. Taste and adjust seasoning as needed.
Pour dressing over pasta and vegetables. Fold gently until evenly coated. Stir in any optional mix-ins. Cover and refrigerate at least 1 hour before serving to allow flavors to meld.
Notes
Make ahead: assemble up to 24 hours in advance for best flavor.
Store up to 3–4 days refrigerated.
For a lighter version, replace half the mayonnaise with Greek yogurt.
Keep crunchy add-ins like celery or nuts separate until just before serving to maintain texture.