Abstract: A pan (10) is formed from a single blank (12) of plastic-coated paperboard and is foldable between a three-dimensional, erect condition and a flat condition. In the flat condition, first and second isosceles trapezoid-shaped side panels (20) are folded about the side edges (18) of a bottom panel (14) to overlie the bottom panel (14) and with their upper edges (22) abutting. Additionally, in the flat condition, first and second triangular panels (34) are folded about the side edges (32) of end panels (28) to overlie the end panels (28). The end panels (28) are in the shape of isosceles trapezoids and are integrally connected to the opposite end edges (16) of the bottom panel (14) and extend continuously therefrom in the flat condition. Attachment panels (38) are foldable about the outer edges (36) of the triangular panels (34) and are secured to the side panels (20) with the side edges (24) of the side panels (20) abutting with and being foldable with the outer edges (36) of the triangular panels (34).