A food processor attachment assembly for a stand mixer includes a coupling hub adapted to be received in an attachment hub of the stand mixer. A gear housing includes a gearing mechanism disposed therein to translate an output drive from the attachment hub to the coupling hub to drive an output shaft along a vertical rotational axis. The output drive is accessible at a coupling portion for attaching to various food processing discs as housed within a top housing assembly. The output drive is further accessible for coupling to the food processing attachment at a lower coupling portion for powering food processing attachments within a bowl assembly.