While my home town is not known for any sort of native cuisine. We do have the best of just about everything. So next time your in the DC area try one of my favorite places. And if you have some I dont know about please add them.
Ethiopian, what do you call an Ethiopian community little Addis Ababa. I you have to stop in Silver Spring MD. I will just link to a MAP and you can pick and choose. My goto restaurant is Addis Ababa which has wonderful sampler platters
DC proper is not to be left out either MAP The best of which is Dukem. 1114 U St NW, Washington, DC 20009
Vietnamese,
You get decent Vietnamese food just about any ware in the DC area. Falls Church VA and Silver Spring VA the heart of the Vietnamese community, thats where the food goes from decent to outstanding. Eden Center is so fantastic visitors from Vietnam seek it out, or so I am told. I hate to name a particular restaurant because most are so good. I would check out Nha Trang in the SE section, Viet Royal in the S section
The former big girl of the center was 4 Sisters moved down the road. I haven’t been in a while but it was awesome.
Best Pho in the City proper Pho 14
Should I combine everything into the first post or keep making separate replies/cuisine ?
Thai/Lao Food.
Thai Food is everywhere but Thai food that will make you do a Homer is rare.
Rabieng And Dungrats These two places are right next to each other and have the same owner to different experiences. One is small and cozy the other a larger restaurant style. Drop by there grocery store to stock up on ingredients after you eat.
Padaek never actualy tried this place yet but it is located in Eden Center and in my experience any no Vietnamese food in Eden Center has been Crazy good.
Bangkok Golden 2 locations Fort Washington, MD and Fairfax Va
Korean,
My favorite place closed but Annandale VA is full of great Korean food.
One place that is blowing up with locations is HoneypigBBQ
Mexican
I ate so much Mexican food I was sick of it. That was until I left DC. A true Mexican taco is a wonderful thing. Just meat onion, cilantro, lime. No cheese, no avocado. Outside of DC I find mostly Salvadoran and Guatemalan tacos. Its just not the same people dont believe them. Dont get me started on Taco’s in NJ, they just use gyro meat. Oh come on.
For a real Mexican taco you have to go to Riverdale MD Taqueria la Placita (they make there own tortillas) or Taqueria Tres Reyes, I think I like the meat better at Tres Reyes.
Recommendation is Taco De Lengua and barbacoa. I do not like chicken and plain beef (res)
Salvadorian
While I know I dogged their Tacos. Pupusas are off the chain. If you in DC and see a pupuseria stop and get some. Andrew Zimmerman featured La Chiquita on Bizzare Foods America.
Russian
I might only have ever tried one Russian restaurant and dont regret it. Russia House was soo good. And sooo expensive. But looking at there menu today looks like the brought there prices down. I have to go back.
Caribbean
This little market has all the seasonings and traditional ingredients you never find anywhere else. They also have a rather delicious hot food counter. http://davecaribbeanmarket.com/products https://binged.it/2PtbPhv
Peruvian
You may have had Peruvian chicken before but if you come to DC you own your self a trip to the place that introduced it to the US. El Pollo Rico there are 6 locations in the DC area but I personally vouch for Arlinton and Weaton(silver spring). And one upstart Super Chicken in Bladensburg
https://www.youtube.com/watch?v=6CA2MlGoo7o&feature=youtu.be
Vegetarian Food
Sadly the place I was going to recommend Soul Vegetarian closed. In its place near buy a new franchise opened and its getting over the top great reviews.
NuVegan Café
2928 Georgia Avenue, Washington, DC 20001
Japanese
The best Sushi place in DC Tono Sushi It was still good on my last visit after the change of ownership. $1 sushi happy hour is the best in town.