In a medium-sized bowl whisk together the gravy mix, can of soup, water, thyme, and pepper until smooth, pour into the slow cooker.
Add the turkey breast into the gravy mixture.
Cover and cook on LOW for 5-6 hours without opening the lid during the cooking time.
Remove the turkey to a cutting board, allow to rest for 5 minutes.
Slice the turkey.
Stir the gravy and serve!
Notes
Turkey breast sizes vary wildly between 3-6 pounds. The total amount of servings will be determined by size. 3-4 pounds will feed 6 people. 5-6 pounds will feed 8.