Frozen foods which have been frozen in the state where the surface of the main material (cooked rice grains, pasta pieces, etc.) is coated with a moisture migration-preventive layer and the outer face of this moisture migration-preventive layer is coated with a sauce layer. Since the main material (cooked rice grains, pasta pieces, etc.) is homogeneously mixed with the sauce, these frozen foods can be packaged separately and each pack has stable qualities with homogeneously mixed main material and sauce. These frozen foods can be produced by a process involving the step of mixing the main material with a primary sauce forming the moisture migration-preventive layer, the first freezing step of freezing the main material thus treated, the step of mixing the main material with a second sauce, and the second freezing step of freezing the main material thus treated.