Ortakoy - worth a visit, but somewhat out of the way so if you have the time. This is an area sort of under the bridge, where there’s a mosque right on the water. Its a great little area near the water, lots of cafes and theres a row of little waffle places i think, or some sort of dessert type thing. Rest Cafe there is apparently pretty good, it does good turkish breakfast and also is much cheaper than the more popular ones right along the water though. may be hard to find but keep it in mind if you go to this area. its especially nice at night when the bridge is lit up, but also great during the day of course.