A microwave cooking tray includes pop-up legs. The microwave cooking tray is formed from a blank including a main panel, at least two leg portions, each leg portion having a first panel connected to the main panel by a first fold line, a second panel connected to the first panel by a second fold line, and a third panel connected to the second panel by a third fold line, and an aperture located on each of the first fold line between the main panel and each of the first panels. When assembled each of the third panels lies flat against an underside of the main panel, such that each of the third panels reinforces the main panel, and the first panel and second panel extend downward from the underside of the main panel to form triangular legs resting on an edge.