Is you fancy some Turkish food, Ankara Restaurant at Nieuwezijds Voorburgwal 16 is a good choice. It's five minutes from the Centraal Station walking east, the restaurant is on the right side of the road.
The food is excellent and service friendly and efficient. Go early though, we went Saturday night about 6 o'clock and by eight it was totally full. The Dutch eat a bit earlier than say southern Europeans so it's advisable to book or turn up in the early evening.
The prices are average: a main course, bottle of wine and a sweet is about 55 Euro.
They have another branch at Spuistraat 3a.