Rinderroulade

Rinderrouladen ) are a German meat dish, usually consisting of bacon, onions, mustard and pickles wrapped in thinly sliced beef which is then cooked. The dish is considered traditional also in the Upper Silesia region of Poland where it is known as rolada śląska (Silesian roulade) and in the Czech Republic where it is known as španělský ptáček (spanish bird). In Britain, the equivalent dish is widely referred to as beef olives. Beef or veal is typically used, though some food scholars tend to believe that the original version was probably venison or pork, and pork is still popular in some areas. The beef rouladen as we know them today have become popular over the last century. The cut is usually topside beef or silverside since this is the cheaper cut. The meat is cut into large, thin slices. The filling is a mixture of smoked fatback, chopped onions and chopped pickles (gherkins) which is at times varied by adding minced meat or sausage meat. The mixture varies from region to region. Rouladen are traditionally served for dinner. Red wine is often used for the gravy.

Source: Wikipedia