01 - Prepare pasta according to package directions. Drain thoroughly, rinse under cold water to stop cooking process, and set aside to cool completely before combining with other ingredients.
02 - In a large mixing bowl, whisk together sour cream, mayonnaise, and ranch seasoning mix until completely smooth and well combined.
03 - Add cooled pasta to the dressing. Fold in shredded cheddar cheese, crumbled bacon, thawed peas, and sliced green onions. Toss thoroughly to ensure even distribution of ingredients.
04 - Refrigerate pasta salad for at least 1 hour to allow flavors to develop and meld. Chilling enhances the overall taste and texture.
05 - Before serving, garnish with additional bacon bits, extra shredded cheese, or fresh green onion slices if desired. Serve cold for best flavor and texture.