Bring a large pot of salted water to a rolling boil. Add uncooked bowtie pasta and cook according to package instructions, until al dente—about 8-10 minutes. Drain and rinse under cold water to cool.

In a spacious mixing bowl, combine the cooled pasta, diced red onion, Canadian ham, and cooked peas. Stir gently to mix well.

In a separate bowl, whisk together the sour cream and French dressing until smooth. Season with salt and pepper to taste.

Pour the dressing over the pasta mixture, gently folding everything together until well coated.

Carefully fold the shredded Cheddar cheese into the salad, ensuring even distribution.

Cover the bowl with plastic wrap and refrigerate for at least 2-3 hours to allow flavors to meld.