The ornamental design for a pasta fork, as shown and described.
FIG. 1 is a perspective view of a pasta fork showing our new design; the broken lines are for illustrative purposes only and form no part of the claimed design;
FIG. 2 is a front end view of the pasta fork of FIG. 1;
FIG. 3 is a rear end view of the pasta fork of FIG. 1;
FIG. 4 is a top plan view of the pasta fork of FIG. 1;
FIG. 5 is a bottom plan view of the pasta fork of FIG. 1;
FIG. 6 is a left side, elevation view of the pasta fork of FIG. 1; and,
FIG. 7 is a right side, elevation view of the pasta fork of FIG. 1.