A fun question! As You Like It is not really an example of what is known as absurdist theater. However, some elements of the play are rather absurd, including the following:
the ease with which characters take on disguises
how well the disguises work (is there real identity here?)
their names when in disguise
Jacques' famous speech about how "All the world's a stage…" and the attitude implied.
the presence of parody, including parody songs
the harsh judgments of humanity expressed
Touchstone's use of language