The ornamental design for an adjustablefoodscoop, as shown and described.
FIG. 1 is a perspective view of an adjustable food scoop.
FIG. 2 is a right side view thereof.
FIG. 3 is a left side view thereof.
FIG. 4 is a front view thereof.
FIG. 5 is a back view thereof.
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The dashed lines shown in the drawings illustrating measurement indicators and wording across a portion of the top surface of the adjustable food scoop form no part of the claimed design.