I work close by and sadly food options are super limited, unless by downtown you mean to include a metro ride to 14th street area or even Penn quarter?

There is a decent middle eastern option in Union Station (Roti).

Getting into union station and I felt like it would be more fun to pick up dinner in dc than the typical chipotle etc when I get home in nova. Something near union station or downtown would be best. Any ideas? Need to feed a family of 4.. Can't think of anything..