Gesamtschule Erle in Gelsenkirchen serves only halal or vegetarian meals after holidays. 60% of pupils have migrant backgrounds, higher in some areas. Pork dishes like currywurst and kassler eliminated. Turkish-run caterer Muttis Küche supplies nine schools and certifies food halal. City food council decided in 2010 to drop pork at all schools. Caterer claims no change in food, just open halal labeling sparks outrage. Berlin schools already offer halal options but not mandatory. High migrant share justifies ditching traditional German meat dishes.