Ortaköy offers something for every taste. Bomonti Brasserie (for me it is a beer house) is a good choice for an afternoon beer and snacks just in the middle of Ortaköy Square.It has 4 floors and the roof terrace is strongly recommended especially in good weather. You can enjoy both the panoramic view including the old town and the Bosphorus while watching the crowds in the Ortaköy square.
Bomonti is a local beer brand that started production in 1890 and having a rebirth in the recent years. And Bomonti Brasserie in Ortaköy serves mainly Bomonti Beers with decent accompanying snacks and food. My favorite beer is Bomonti Unfiltered and the snacks basket goes well with it.
For lunch or dinner, they have a huge menu which makes you think that “when you try to do everything, you can not do it perfectly”. This is more or less correct. They are not specialized but I have never been disappointed with any food there. They have decent pizzas and more than decent grilled beefs. Especially “Bomonti Lokum” worths a try.
I think you will also enjoy the atmosphere and decoration, especially the library & objects exhibited on the second floor. There is live music at the weekends.