Gather the ingredients.
Spray inside of slow-cooker crock with nonstick cooking spray.
In a bowl, combine the water, soup, mushrooms with liquid, and pimiento.
Stir in the turkey, cheese, onion, parsley, and nutmeg.
Add broken up spaghetti. Stir to combine and pour into crock pot.
Cover and cook on low for 4 to 6 hours, until spaghetti is tender.
Stir before serving.
