From WordNet (r) 2.0 (August 2003) [wn]:
patty
n 1: small flat mass of chopped food [syn: cake]
2: small pie or pasty
3: round flat candy
From The Collaborative International Dictionary of English v.0.48 [gcide]: Patty \Pat"ty\, n.; pl. Patties. [F. p[^a]t['e]. See Pasty.] A little pie. [1913 Webster]