Crystallization confined in nano-environments impacts nanoscience and nanotechnology. In this work, we investigate the template crystallization of fatty acids at the graphite/solution interface. We investigate the presence of nanoparticles on the self-assembly of the fatty acids. Pure fatty acids (C16-26) form highly ordered stripe phase on graphite because of the 1-D epitaxial match of the alkyl chain and the graphite lattice. The presence of cadmium selenide nanoparticles capped by mercaptoundecanoic acid promotes nucleation of extremely narrow nanorod crystals of the fatty acids. Topographical analysis of the nanorods shows that fatty acids nucleate into the C-form crystal from the nanoparticle surface and the cross section of the nanorod crystal is only one unit cell in size. The small crystal size is attributed to the confinement imposed by the highly curved nanoparticle surface.