Diffusion weighted imaging around metal implants is a difficult task that requires a combination of multi-spectral MRI approaches with non-CPMG spin-echo refocusing techniques. Current implementations of this approach have shown promising initial clinical results. Further work on improving the acquisition efficiency of these techniques are required to achieve robust clinical viability. Here, we present an approach that utilizes the MSI spectral domain to enable spectral undersampling of diffusion-weighted acquisitions. The approach is also easily extendable to other multi-phase implementations of MSI, such as thermometry or relaxometry, where multiple volumes of data need to be acquired for quantitative computations.