Found this smallish restaurant on a recent visit to Amsterdam. The food was very good and plentiful and they offer a set 3 course lunch for around €25 or select from the full menu. We ate there at Lunchtime and in the Evening and both were very enjoyable.
There is a seated area directly opposite the restaurant with tables which are beside a church and tend to be shaded which was ideal given that it was very warm and sunny whilst we were there. The staff were really engaging and more than happy to talk through the menu or just to pass the time of day and have a laugh. The overall cost for two of us both at lunchtime and in the evening was around €60-€65 including drinks and I would have no hesitation in recommending you visit. I shall certainly be back (Try the Brand beer which is brewed in Amsterdam)