Q. If I make a mezonos brocho on a piece of cake and also eat some rice products that are included in that brocho, when I say the bracha acharona (blessing after eating) of al hamichya, does it also include the rice eaten? After all the bracha acharona on rice is different namely boreh nefashos.
A. Birkey Yosef (208: 7) quoted by Shaarei Teshuva (208: 9) and Kaf Hachaim (ibid: 41) rules that whoever eats cooked rice and recites afterwards 'al hamichya', or if he ate mezonos and then recited 'al hamichya,' since rice is also fullfilling (misa'ad soed), he complies with the brocho acharona. (See Vesos Habrocho p. 519: n. 15).
Horav Shlomo Miller's Shlit'a opinion is similar.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a