Q. If one ate a full meal that included an appetizer, soup, main dish and dessert. Then recited Birchat Hamazon, but didn't realize that the bread he ate was rice bread, did he comply with the Birchat Hamazon he said?
A. Shulchan Aruch (O.H. 208: 17) rules that Birchas Hamazon does not cover foods that their blessing is 'Al Hamichiya'. See also Mishna Berura (197: 16) that it also does not cover food that their first blessing is Shehakol and he has to recite the brocho of Bore Nefoshos.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a