Combine the Base: Add chicken, soups, broth, onion, garlic, and seasonings to crockpot. Stir to combine.
Slow Cook the Chicken: Cook on LOW for 6–7 hours or HIGH for 3–4 hours.
Shred the Chicken: Shred chicken using two forks right in the crockpot.
Add the Creaminess: Stir in cream cheese and cheddar until melted.
Mix in the Pasta: Toss in cooked spaghetti and coat evenly.
Serve and Garnish: Garnish with fresh parsley and extra cheese if desired.
