Had to look that one up...

Mise en place (French pronunciation: [mi zɑ̃ ˈplas]) is a French culinary phrase which means "putting into place". It refers to the setup required before cooking, and is often used in professional kitchens to refer to organizing and arranging the ingredients (e.g., cuts of meat, relishes, sauces, par-cooked items, spices, freshly chopped vegetables, and other components) that a cook will require for the menu items that are expected to be prepared during a shift.

Thanks for providing me with a new fancy french word I can now expression at every remotely fitting occasion! ;-)