I'll beat Thal to it and suggest any of Thalberg's transcriptions, especially those from 'L'art du chant appliqué au piano'.
HiI really need some lesser known works for a recital as all i have so far is Beethoven Chopin & Ravel. Not looking for big sonatas or anything, more sort of 5 - 10 minute pieces give or take. any really cracking obscure works out there?