I think they are now at the Cool Ship in Tomorrowland at MK (used to be in Frontierland for years but moved last Spring). I may be reading OP's post wrong, but think she is asking not only for locations where it is served but also where the turkey leg qualifies as a QS credit? Don't think the Cool Ship at MK qualifies as a QS credit. OOP only.
But in Hollywood Studios, I believe the turkey leg qualifies as a QS credit at Min & Bill's.