Place the chicken breasts in the bottom of your slow cooker.
Add cream of chicken soup, cream of mushroom soup, Rotel, chicken broth, garlic powder, onion powder, paprika, salt, and pepper. Stir slightly to combine.
Cover and cook on LOW for 6 hours or HIGH for 3-4 hours, until the chicken is fully cooked and tender.
Remove the chicken, shred it with two forks, and return it to the slow cooker.
Stir in the cream cheese and shredded cheddar cheese, allowing them to melt and blend into the sauce.
Cook the spaghetti separately according to package instructions, then drain and add it to the crockpot.
Stir everything together until well combined and creamy. Let sit for 5 minutes to thicken.
Garnish with fresh parsley or green onions before serving. Enjoy!