This is one of the easiest ways to cook a turkey breast. For my family, we always have enough left-overs for at least another meal. I'll set this up in the mornings of days I expect to busy right up until dinner time.
1 6-8lb turkey breast, bone in
1 can of gravy
1 T of chopped rosemary
Remove skin from the turkey breast plus any visible fat. Place breast side up in the slow cooker. Cover in gravy, then sprinkle on the rosemary. Cook at the low setting 8-10 hours.
Great side dish: Whipped sweet and yukon gold potatoes.