Traveling south on Eads St. in Crystal City, you pass by two prominent Kabob places, one of them open 24 hours, where almost all the cabdrivers stop at 23rd St.
5 blocks further down, just when you're sure that no other restaurants exist, right after an Arlington County park, is Rasoi, an Indian kabob place in a former townhouse in a kind of residential-industrial neighborhood. I went there for lunch yesterday.
Four different kinds of kabobs, Tandoori style, cooked over charcoal. Swordfish, lamb, chicken breast, and chicken on the bone (2 legs, 2 thighs). I got the chicken on the bone. With it came rice, two sides (both curries: mutter paneer, and potato/broccoli mixture), a tiny salad of lettuce and raw onion, hot chai (self serve from a drip coffee maker),and freshly baked naan. You order from a counter and eat in a separate room. Don't expect luxurious surroundings.
The curries were straightforward, fresh, and decent. The kabob was sensational. The naan was delicious. This was a big meal for $6.50 including tax, enough for lunch and dinner.