yin yunfeng spent a week before returning to tibet cooking food .
the soldier filled the fridge with stir-fried dishes and 1,000 dumplings .
a variety of snacks have also been hidden in the house as daily surprises .
yin is stationed far from home and only gets to see his wife once a year .
the wife , named only as ms zhao , has been branded ` luckiest wife ' in china .