Basket apparatuses for use in food product preparation are provided that can be placed in cooking apparatuses. The basket apparatuses can include a plurality of side walls of one or more base sheets forming unitary side wall lattice-like portions and forming side wall component connection portions. The basket apparatuses can include a bottom wall of a base sheet forming a unitary bottom wall lattice-like portion and forming bottom wall component connection portions. The bottom wall is attached to the side walls to define a food product receiving space. The basket apparatuses includes a plurality of shelves with each shelf being pivotally connected to opposing side walls and movable between a stackable horizontal position and a stackable vertical position in the food product receiving space. Each shelf includes a base sheet forming a unitary shelf lattice-like portion having apertures therein forming substantially flat surfaces on which food products are placeable.