01 -
In a 6-quart slow cooker, add cream of chicken soup, cream of celery soup, diced tomatoes, and cubed cream cheese. Stir to combine thoroughly.
02 -
Incorporate garlic powder and oregano into the mixture. Place chicken breasts into the slow cooker, then cover and cook on low heat for 4 to 6 hours until chicken is tender and shreds easily.
03 -
Remove the chicken breasts from the cooker and shred with two forks.
04 -
Cook spaghetti separately according to package instructions, then drain.
05 -
Return shredded chicken, cooked spaghetti, and shredded mozzarella to the slow cooker. Stir gently to combine, cover, and allow cheese to melt for approximately 5 minutes.
06 -
Adjust seasonings with salt, pepper, garlic powder, or oregano as needed. Serve warm.