PURPOSE: To efficiently produce a processed food having high nutritive value, by concentrically extruding dough of ground food or dough of paste food and cheese simultaneously, integrating into plural layers while forming into a bar, cutting into proper length and heating.

CONSTITUTION: An extrusion part 2' of a molding device 2 for food dough such as dough of ground food or dough of paste food is connected to an extrusion part 1' of a molding device 1 for cheese through a pressure sending pipe 3 and modified extrusion nozzles 5 and 4 are concentrically attached to the extrusion part of one molding device. By using this apparatus, dough of ground food or dough of paste food and cheese are concentrically extruded simultaneously, integrated into plural layers while being formed into a bar, cut into proper length and heated. Consequently, a tasty processed food having high nutritive value can be efficiently produced.