Pat (pas) Israel (Hebrew: פת ישראל) is Jewish Supervision including the lighting of the oven flames which are restricted from being lit by gentiles. Many observant Jews are relaxed in this restriction.
The flip side of the term is Pas Nochri (Hebrew: פת נכרי) or Pat Akkum (Hebrew: פת עכו”ם) which is a bread (some says cookies) made from the five grain, baked by a non-Jew.