In a medium bowl, whisk together mayonnaise, relish, sugar, mustard, vinegar, and a pinch of salt and pepper until creamy.

Dice ham and cheddar cheese, chop bell pepper and onion, and roughly chop parsley.

Bring a large pot of salted water to boil. Add bow tie pasta and cook for 9-11 minutes until al dente. Drain and rinse under cold water.

In a large mixing bowl, combine cooled pasta, ham, cheese, peas, onion, bell pepper, and parsley. Stir gently to combine.

Pour the dressing over the pasta mixture and toss gently to coat. Make sure all ingredients are evenly covered.

Cover and refrigerate for at least 1 hour to enhance flavors. Stir before serving.