Baking pan for cooking food products in an oven, comprising: ➢ a support of paper sheet material having: ∘ at least one containment structure exhibiting a bottom portion, a top portion delimiting an inserting opening and a lateral portion emerging from the bottom portion and connected to the top portion, said containment structure being integrally made from a same paper sheet material, the bottom portion, the top portion and lateral portion being integrally seamlessly made, ➢ at least one container of a paper sheet material housed in the containment structure, the container exhibiting a base, a lateral wall emerging away from the base and an upper edge emerging from the lateral wall, the container being integrally made from a same paper sheet material, the base, the lateral wall and the upper edge being integrally seamlessly made, wherein the base of the container is substantially in contact or in proximity with the bottom portion of the containment structure, the lateral wall of the container is substantially in contact or in proximity with the lateral portion of the containment structure, the upper edge of the container is substantially in contact or in proximity with the top portion of the containment structure, wherein the container is coupled with the top portion of the containment structure, and the lateral portion of the containment structure comprises a plurality of ribs extending from the bottom portion and joined to the top portion for defining a lateral area of the containment structure exhibiting through openings alternated by ribs, characterized in that the upper edge of the container comprises a first segment transversal, particularly substantially parallel, to the top portion of the containment structure and the lateral wall of the container comprises a second segment transversal, particularly substantially parallel, to the top portion of the containment structure, said segments (16, 17) being consecutive to each other, the first segment being placed above the top portion of the containment structure, the second segment being placed below the top portion of the containment structure oppositely to the first segment in order to define a stable interference fit between the container and the containment structure, in a cross-section according to a vertical plane in normal conditions of use of the baking pan, the first segment and the second segment define a substantially "U" pattern inside which there is housed and held the top portion of the containment structure, an upper segment of each rib is crushed towards the top portion. ➢ a support of paper sheet material having: ∘ at least one containment structure exhibiting a bottom portion, a top portion delimiting an inserting opening and a lateral portion emerging from the bottom portion and connected to the top portion, said containment structure being integrally made from a same paper sheet material, the bottom portion, the top portion and lateral portion being integrally seamlessly made, ➢ at least one container of a paper sheet material housed in the containment structure, the container exhibiting a base, a lateral wall emerging away from the base and an upper edge emerging from the lateral wall, the container being integrally made from a same paper sheet material, the base, the lateral wall and the upper edge being integrally seamlessly made, wherein the base of the container is substantially in contact or in proximity with the bottom portion of the containment structure, the lateral wall of the container is substantially in contact or in proximity with the lateral portion of the containment structure, the upper edge of the container is substantially in contact or in proximity with the top portion of the containment structure, wherein the container is coupled with the top portion of the containment structure, and the lateral portion of the containment structure comprises a plurality of ribs extending from the bottom portion and joined to the top portion for defining a lateral area of the containment structure exhibiting through openings alternated by ribs, characterized in that the upper edge of the container comprises a first segment transversal, particularly substantially parallel, to the top portion of the containment structure and the lateral wall of the container comprises a second segment transversal, particularly substantially parallel, to the top portion of the containment structure, said segments (16, 17) being consecutive to each other, the first segment being placed above the top portion of the containment structure, the second segment being placed below the top portion of the containment structure oppositely to the first segment in order to define a stable interference fit between the container and the containment structure, in a cross-section according to a vertical plane in normal conditions of use of the baking pan, the first segment and the second segment define a substantially "U" pattern inside which there is housed and held the top portion of the containment structure, an upper segment of each rib is crushed towards the top portion.