onlyemes:
A number of years ago I learned that the heter of lighting the fire only applies to Ashkenazim, not to Sfardim. I also learned that hechsherim in Israel will have the mashgiach come in early and cook the meat (not fully, halachikally cooked) so that there was no issue of bishul akum.
I saw this 1st hand in a Chineese restaurant once in Jerusalem.