What is "Mishteh"?
Rashi: The entire meal is called Mishteh due to the wine, which is primary.
Why did Esther invite him to a Mishteh, and not say her request immediately?
Vilna Gaon: I have a big request. If I saw it immediately, perhaps you will not agree. During the Mishteh, when your heart is merry, I will request.
Refer to 5:4:3:1, 2, 6-8, 10-12.
Why did Esther invite Haman to the Mishteh?
Torah Temimah citing Megilah 15b #1: She set Pachim (traps) for him - "Yehi Shulchanam Lifneihem l'Fach".
Torah Temimah citing Megilah 15b #2: "If your enemy is hungry, feed him bread. (
Why did she say "Asher Asisi Lo"?
Refer to 5:8:4:1-6.
Malbim: It is already prepared. She said so to hasten his coming.