לזכות חנה בת הילה לברכה והצלחה בכל מעשי ידיה!
What is נא?
Meaning - the korban pesach may not be eaten raw [נא]. What is the shiur?
The Minchas Chinuch [מצוה ז] wonders about this. He entertains the thought [assuring that the thought will have a good time...] that even כמאכל בן דרוסאי is נא but leans towards the notion that מאכל בן דרוסאי is no longer נא.
Rav Gifter ztz"l in his comments to the MC [פתי מנחה] wonders how one could have a הוה אמינא that roasted כמאכל בן דרוסאי would be considered נא.
But that is in fact the clear implication of the Yerushalmi [סוף פ"א דשבת], Rashi in Chumash and numerous other sources.
עי' קבא דקשייתא בהוצאת הר' מנדלבוים ח"א עמ' ק"ח ושם נסמן
