Unlike lighter pastries, the Cornish Pasty is meant to be substantial

https://super-wiki.win/index.php/Cornish_Pasties_by_Post:_A_Guide_to_the_Cornish_Pasty%E2%80%99s_Official_Status_60152

Unlike lighter pastries, the Cornish Pasty is meant to be substantial, providing enough food to satisfy real hunger in one compact package.