Are the Turkish places on Green Lanes open Sundays?
Ended up going a bit further South, to the cluster just north of Dalston Kingsland rail, thanks to the train to Green Lanes being down.
I can report that about two thirds of the cluster of Turkish places just north of the station were open for Sunday lunch, but most seemed to be offering a restricted menu - I don't think many/any were barbecuing that day, but there were several places turning out fresh-made gozleme and manti, which is what I'd recommend having in similar circumstances.
The pre-made meat dishes were ok, but nothing special.
Yes, particularly the stretch down toward Haringay/Green Lanes Station - even on a Sunday that area is mostly open and busy, particularly from lunch into the afternoon - this is because it's right by a shopping park. If I was looking for good Turkish food (and a variety of it) I'd start in this area, rather than the stretch between Turnpike Lane and Wood Green, which tends to have more fried chicken and coffee chains.