Spray the inside of slow cooker with non-stick cooking spray and place turkey breast in the bottom of the crock pot.
In a large separate bowl, mix together remaining ingredients.
Spread over turkey breast in slow cooker.
Cover and cook on low for 4-6 hours.
Notes
Slow cookers can get a toasty on the bottom and burn food occasionally. Therefore, do not forget to spray down the slow cooker with nonstick cooking spray. You could also try these slow cooker liners.
If you prefer to use chicken breasts rather than turkey breasts, you can. Cooking times are about the same.
If you don’t happen to have poultry seasoning at home and you can’t find it at the grocery store, take a look at RawSpiceBar’s Best Poultry Seasoning Substitute suggestions.