The SMR is the UK equivalence to the US MRE, and this British comfort food classic Pork Sausage Casserole is quite possibly the best menu out of the 10 currently in service. With 1,500 calories, a roaring flameless ration heater that's easily twice as powerful as an MRE's, and rugged components that are palatable and nutritious, this is truly one of the most well made military rations in the world.