This talk will present the first measurement of monoenergetic muon neutrino charged current interactions. The MiniBooNE experiment at Fermilab has been used to isolate and study 236 MeV muon neutrino events originating from charged kaon decay at rest. The muon kinematics and total cross section have been extracted from this data. Notably, this result is the first known-energy, weak-interaction-only probe of the nucleus to yield a measurement of omega (energy transferred to the nucleus) using neutrinos, a quantity thus far only accessible through electron scattering. I will discuss the significance of this measurement, and these monoenergetic neutrinos in general, for elucidating both the neutrino-nucleus interaction and oscillations.