An improved microwavable package of laminar construction, having its inner layer constructed of a film whose inherent seal strength is sufficiently high that the inside of the package need not have extraneous reinforcement to maintain its integrity filling, storage, distribution and cooking. The microwavable package is ventable and easily opened by virture of a strip of heat sealable adhesive coated along its top edge immediately inside the opening of the bag and having a seal strength less than that of the package formed seals, to mask the package's normal seal strength.