Take blue line 11 towards Akalla when coming from the center, get off at the front end of the train. Down the stairs, to the right, and immediately down the stairs again. Turn right for 180 degrees at the end of the stair, and you will see the dodgy looking restaurant called Mama Africa.

The restaurant is located underneath the metro station, at the bus station in Kista.

If you want some food, order before the run. They recommend the Mama Africa speciality, which comes in both a vegetarian and a meat form, for about 105 SEK.