Abstract: An improved food crusher is described in which a grinder housing is formed with a food chamber and a food transport in the form of a screw. Inner and outer grinder disks are employed wherein the inner disk is removably mounted to the housing in a stationary position and the outer disk is removably affixed to the screw with coupling means that provide positive drive connection to the screw with axial retention, yet enables convenient removal from the screw. The coupling means includes a hammer shaped tip that is an integral part of the screw and which fits through a correspondingly preferentially shaped hole in the outer disk to enable the tip to be turned after passage to lock the outer disk to the screw. Disassembly of the food grinder involves a reverse motion of the screw to disengage the outer disk from the screw followed by simple removal of the inner disk from the housing.