Leave it to Esmie’s is excellent! Well worth a visit.
I haven’t personally been to Sultan but heard good things. Same with Habibi’s. The Nigerian place provided the catering for an event at the Uni the other week and the feedback was excellent.
Pasha is a bit more spit and sawdust but does a mean large chicken shish, spicy rice and salad and they always throw in a free bowl of soup!
The Ukrainian/Polish place is actually run by a Belarusian but, randomly, was with a Ukrainian girl in Poland last week and was telling her about this place and she said the menu looked good and certainly very traditionally Ukrainian so have promised her I will try it out.