Blue Amsterdam. Food and drinks with a panoramic view of the city.
If you like your food with a view that won't blow the budget. More of a cafe, you enter taking the elevator in the shopping center just off Kalverstraat, just down from one end of the Flower Market. A very buzzy atmosphere.
Go for the Dutch Meat Croquettes with hot mustard dipping sauce. Add some fries with Mayo. Grab a coffee and cake afterwards.
If it's sunny, bring your shades. Definitely bring your camera for 360 degree views of the city.