I like RAS which is right by Fusion and Moroni Brother's (both of which I also like). RAS is Ethiopian/Jamaican and is very reasonably priced.
While I haven't been there, Chez Billy is near the Petworth Metro. It is a bit upscale and gets good reviews.
Also, almost next to Meridian Pint is the Kangaroo Bicycle Club (KBC) that is good. Friends have said good things about Maple which is also right around there.