Grease a 6 quart crockpot with cooking spray, add in chicken thighs, onion, bell peppers, basil, Italian seasoning, onion powder, garlic powder, paprika, salt, pepper, and mushroom soup, then stir to combine.
Cover and cook on HIGH for 3-4 hours or LOW for 6-8 hours.
Remove chicken and set aside.
To the crockpot, add in cream cheese, cheddar cheese, sour cream, and parmesan cheese, then stir until all the cheeses have melted.
Shred or chop chicken, then stir into the crockpot.
Taste and re-season, then serve with cooked spaghetti* and enjoy!