Zombie Steak is a mod that converts Zombie flesh into a more tolerable food source and no longer poisonous. Just add a snowball to the rotten flesh and it becomes an edible meat.
You can then cook the meat to make it into an even better food source.
And on top of that there are now a variety of soups you can make with zombie steak as well as with Slimeballs!
Important: Unfortunately this mod is no longer available!Install Guide