yeah Nopales are the quintessential mexican food! euz won't let me lie!
@ dosron, yes! nopales are "Feigenkaktus" auf Deutsch and are very edible here a link auf Deutsch
@ jordi, yes yes jordi, comiste cactus, y muy bueno eh??? here a link for you in English :)
and yes in Mexico we use nopales for 'salads' and include them in dishes as vegetables... then the flower of the plant, called Tuna, we eat them as fruits, they are delicious!! and lately they are becoming very popular in Japan, since they have health benefits like lowering cholesterol, etc.