Place the boneless, skinless chicken breasts in the crockpot.
In a mixing bowl, combine the cream of chicken soup, cream cheese, ranch dressing mix, and chicken broth. Stir until smooth.
Pour the creamy mixture over the chicken in the crockpot, ensuring the chicken is well coated. Season with salt and pepper to taste.
Cover the crockpot and cook on low for 6 hours, or until the chicken is very tender and easily shreds with a fork.
About 15 minutes before the cooking time is up, bring a large pot of salted water to a boil. Cook the pasta according to package instructions until al dente. Drain and set aside.
Once the chicken is done, use two forks to shred the chicken in the crockpot. Stir the shredded chicken into the creamy sauce.
Add the cooked pasta into the crockpot and mix well to combine. Top with shredded cheddar cheese.
Cover and let sit for an additional 5-10 minutes until the cheese is melted.
Serve hot, garnished with fresh parsley if desired.