By contrast with the prior art, one major goal of the present invention is to find a way to provide an inexpensive and disposable microwave food heating container or package useful for shipping, heating and when desired to hold food as it is being eaten as well as to provide an improved method of distributing and heating foods with microwave energy. Another heater is described in U.S. Pat. No. 3,777,099. Similarly massive, the heat absorber is placed inside an insulator such as sand or concrete with cardboard or ceramic around it. All forms of the invention utilize a heavy slab or plate on which the food is placed. The food is not shielded or enclosed. U.S. Pat. No. 3,731,037 describes a microwave kiln for food having heat insulating walls preferably of a material capable of withstanding refractory temperatures lined with a material such as glass or ceramic which is made lossy. The patent also discloses a disposable kiln containing an aluminum food dish, polyurethane foam walls and a lossy floor lining which consists of water.