1. Rotisserie forks for use on a motorized elongated spit rod having a central axis and a sharpened tip, wherein the forks comprise a) a split shaft collar having an opening that slidably receives the spit rod and has an inside diameter, and b) a lever-action quick-release clamp that surrounds the shaft collar, has open and closed lever positions, and which when open enables the shaft collar and fork or basket to move along the spit rod central axis, and which when closed reduces the shaft collar inside diameter so that the fork does not move along the spit rod central axis during rotisserie grilling, wherein the lever moves between its open and closed positions in a direction perpendicular to the spit rod central axis and thus does not lengthen the forks along the spit rod central axis when moved between the open and closed positions, and wherein the fork is free to rotate with respect to the shaft collar when the quick-release lever is open, thus permitting rotation of the fork with respect to the spit rod when such rotation is desired in order to avoid bones or to skewer irregularly-shaped food, and is rotatably fixed with respect to the shaft collar when the lever is closed.