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