We investigate three-dimensional rolled-up metamaterials containing optically active quantum wells and metal gratings supporting surface plasmon polariton (SPP) resonances. Finite-difference time-domain simulations show that, by matching the SPP resonance with the active wavelength regime of the quantum well, a strong transmission enhancement is observed when illuminating the sample with p-polarized radiation. This transmission enhancement is further increased by taking advantage of the Fabry-Perot resonances of the structure.