Assemblies, systems, and methods for stacking, destacking, or stacking and destacking a plurality of trays that includes a conveyor having a first rail and a second rail; a lift subassembly configured to stack or destack a plurality of trays having predetermined dimensions, the lift subassembly comprising a first set of arms slidably coupled to a lift plate; a second set of arms slidably coupled to the lift plate; and a bracket configured to slidably couple the lift subassembly to the first rail and the second rail, wherein the first rail, the second rail, or the first and second rails are adjustable along the bracket of the lift subassembly to correspond to the predetermined dimensions of the plurality of trays, and wherein each of the first and second sets of arms are independently adjustable to correspond to the predetermined dimensions of the plurality of trays.

A taco stacking apparatus comprises a conveyor assembly for supporting and moving taco shells along a predefined pathway. The conveyor assembly defines an opening in the predefined pathway that enables the taco shells to pass through the conveyor assembly. A stacking receptacle defines a channel for receiving taco shells passed through the opening in the predefined pathway of the conveyor assembly. A plunger assembly passes a taco shell through the opening in the predefined pathway of the conveyor assembly to the stacking receptacle.

A taco stacking apparatus comprises a conveyor assembly for supporting and moving taco shells along a predefined pathway. The conveyor assembly defines an opening in the predefined pathway that enables the taco shells to pass through the conveyor assembly. A stacking receptacle defines a channel for receiving taco shells passed through the opening in the predefined pathway of the conveyor assembly. A plunger assembly passes a taco shell through the opening in the predefined pathway of the conveyor assembly to the stacking receptacle.