Add Ingredients to CrockPot: Place the chicken breasts in the bottom of the CrockPot. Add the cream of chicken soup, chicken broth, heavy cream, garlic powder, onion powder, Italian seasoning, salt, and pepper. Stir to combine.
Cook: Cover and cook on low for 6–7 hours, or on high for 3–4 hours, until the chicken is fully cooked and shreds easily.
Shred Chicken: Once the chicken is cooked, shred it using two forks and stir it back into the sauce.
Add Tortellini: Stir in the tortellini and cook on high for an additional 30–45 minutes, until the tortellini is tender and cooked through.
Finish and Serve: Stir in the Parmesan cheese until melted and creamy. Garnish with fresh parsley, if desired, and serve warm!