Add the chicken breasts to your crockpot and season with garlic salt, black pepper, garlic powder, onion powder, and Kinder's Buttery Garlic & Herb Seasoning.
Add the cream cheese, four cheese Alfredo sauce, marinara sauce, and minced garlic to the crockpot. Give everything a good mix.
Cover and cook on HIGH for 3 hours, until the chicken is fully cooked and tender enough to shred.
Shred the chicken directly in the crockpot and stir until the cream cheese, Alfredo sauce, marinara sauce, garlic, seasonings, and chicken are well combined.
Add the frozen cheese tortellini, stir it into the sauce, cover, and cook for 30 more minutes, or until the tortellini is tender.
Add the shredded mozzarella cheese and stir until it is completely melted and combined with the chicken and tortellini.
Garnish with parsley flakes and serve hot.