Operakällaren's name dates back to 1787 when the restaurant was situated in the cellar under King Gustav III's opera house. History permeates the atmosphere in this heritage property, a house filled with opportunities, with its four restaurants, cocktail bar, wine cellar and function rooms. Alessandro Catenacci took over the restaurant in 1987 and has actively cared for that Operakällaren's trademark "Tradition & Quality" successfully has been combined with innovation and improvement.

Today's Chef des Cuisines Stefano Catenacci is now responsible for all banquets at the Royal Castle and Operakällaren has been appointed Purveyor to H.M. the King. In 1997 Operakällaren was honoured with one star in prestigious Guide Michelin and five red 'Couvert symbols', crossed forks and spoons.In 2010 Stefano was responsible for the dinner at the grand wedding of H.R.H. Crown Princess Victoria.