One of the two Halal KFCs in Melbourne is in Fawkner. Most of the chicken products sold at this KFC are Halal, except at times for those promotional or seasonal items. You can ask the KFC counter staff about the Halal status of new menus, and they'll surely be able to assist you.
KFC Fawkner is located on 1293 Sydney Rd, Fawkner. The other Halal KFC is located at Flemington.