Today's "Japanese Word of the Day" is Itadakimasu. This Japanese
vocabulary word is a Japanese greeting used before eating food. This
expression is used in appreciation for the food you are about to eat
and to thank the person who cooked the food. Please listen to Yuki
Sensei's pronouciation of itadakimasu. The Japanese word Gochisoosama
Deshita is used at the end of a meal.
http://www.japanese101.com/videos/V1006.htm