Akboria restaurant, 100m north of Shatmatta. Good good, byriani and poretas, for a local price ~50 to 100BDT.
Shyamoli, just in front, is smaller but with the same good level of service.
Red chillies is 200m south of Shatmatta, good food, higher grade restaurant 250-500 BDT per meal as well as a guest house 1500BDT/night.