This story wasn't bad, but I didn't relate all that much to the protagonist. On the other hand, the descriptions of her cooking made me very hungry! the idea that the tradition of feeding ghosts disgusting things when they really prefer normal foods is a strange one. Why don't they just go to McDonalds and steal people's hamburgers?
I don't think that going to McDonald's was an option available to them. The food still had to be ritually prepared and properly blessed.
Also, from a Chinese point of view, ghosts don't actually eat the physical food, but eat the steam/smoke/vapors emanating from the food. Typically this is only done during Chinese New Year, with offerings usually of dumplings, rice, cigarettes, liquor, tea, and chocolates, along with a burning of paper money (hell notes) so the ancestors have some spending money in the afterlife. Also, at least in the part of (northern) China where I was from, the food offering was completely normal, and it wasn't out of the ordinary to actually eat the food after the offering was done.
The story itself, was one of my all-time favorites, though.