Whisk together mayonnaise, sour cream, Dijon, vinegar, sugar, salt, and pepper until smooth.
Taste and adjust seasoning if needed.

4. Combine Everything

In a large bowl, mix pasta, vegetables, and peas.
Pour dressing over and toss gently to coat.

5. Chill & Serve

Refrigerate for at least 1 hour before serving to let the flavors meld.

Pro Tips

Rinse pasta immediately after cooking to keep it from sticking.
Chilling is essential for the best flavor and texture.
Add extras like diced ham, shredded cheese, boiled eggs, or bacon bits for variety.
To lighten it up, swap half the mayo for Greek yogurt.