1. A method for a mechanized and automatic production of flat cakes and/or pizzas comprising organizing production and garnishing of a flat cake based on an individual order according to a selection list; preparing an individual flat cake precursor of dough ingredients as an individual dough portion, wherein the pizza is produced by taking into consideration a desired amount of individual ingredients for preparing the dough, and wherein pre-proportioned dough ingredients are employed; passing the precursor through a kneading and extrusion apparatus; passing the precursor on a heated transport plate through a shaping press; passing the precursor on a heated transport plate through a metering and distribution device for tomato pulp, sauces and the like; passing the precursor on a heated transport plate through a metering station for the garnishing ingredients, wherein the flat cake is topped with garnishing ingredients under the metering station for the garnishing ingredients, wherein pre-proportioned amounts of garnishing ingredients are employed, and wherein the pizza is produced by taking into consideration a desired amount of the garnishing ingredients and/or spices; passing the precursor on a heated transport plate through a baking station, wherein the production comprises a complete production cycle, wherein no pre-produced and/or pre-cooked semi-finished products are employed in the production; maintaining permanently those parts of the production installation which are not already subjected to a continuous germicidal effect based on temperature influence in a hygienic state corresponding to the regulations concerning foodstuffs either by a programmed cleaning and sterilization cycle employing water and hot air in connection with cleaning and germicidal agents and/or by a simple exchange of the device components; wherein no baking forms are used for the flat cakes and wherein no already preshaped flat cakes are employed in the production.