We present a new method for interferometric imaging that is ideal for the large fields of view and compact arrays common in 21 cm cosmology . We first demonstrate the method with simulations for two very different low frequency interferometers , the Murchison Widefield Array ( MWA ) and the MIT Epoch of Reionization ( MITEoR ) Experiment . We then apply the method to the MITEoR data set collected in July 2013 to obtain the first northern sky map from 128 MHz to 175 MHz at \sim 2 ^ { \circ } resolution , and find an overall spectral index of -2.73 \pm 0.11 . The success of this imaging method bodes well for upcoming compact redundant low-frequency arrays such as HERA . Both the MITEoR interferometric data and the 150 MHz sky map are available at http : //space.mit.edu/home/tegmark/omniscope.html .