Di San Xian ??? (stir fried potato, aubergine and green pepper)

Di San Xian (or more accurately read as 'dee sun sen') is a delicious vegetarian dish from Dongbei (north east China). The name Di San Xian ??? is translated as 'earth three fresh'.Potato is hardly ever added to any Chinese stir fries, but this recipe really works and truly yummylicious. Once you have tried it, you want again and again. The secret of this recipe is all the vegetables must be