There is a book called "Hungry Planet" that examines and does a photo essay of different families around the world and lays out what they eat in one week. It's on amazon if you are curious: http://www.amazon.com/Hungry-Planet-What-World-Eats/dp/1580086810/ref=tmm_hrd_title_0

Time magazine showed a few pics from the book here. These pics are from 2005.

http://www.time.com/time/photogallery/0,29307,1626519_1373664,00.html

and here are a few high resolution pics:
Ecuador
mexico
guatemala
cuba
italy
USA


i've also read a similar book in sociology that showed all the possessions a family had and laid them all out on their homes. that book is called "Material World" and it's here on amazon: http://www.amazon.com/Material-World-Global-Family-Portrait/dp/0871564300


here are some examples from that book! But, this book was published in 1995, so think of this as a time capsule.
russia
mali
china
india
japan
usa

That is really interesting, I feel bad how the Africans have so little.
But OMG, Europeans eat, A LOT!! So do Mexicans and United Statesians O__O
Thank you Drooly! I like all these, really shows the world's cultures in an edible item.

The German family spends $2k a month worth of food for a family of four.