Q. We had a discussion in our shul. Some say that it is better to eat two seudos during Purim day and the first one should be dairy. While others were sure that both should be fleishig. What is correct?
A. On question 1637 regarding if there is a mitzva to eat two seudos on Purim day, the first one before chatzos, we wrote: “Mishna Berura (695: 8) writes that the reason the seuda is not customarily done in the morning is because people are busy sending shalach monos. The activity often prolongs close to mincha time, then you are not allowed to eat unless you daven first. However, Eliahu Rabba and Pri Megodim (E.A. 5) quoting Sheloh maintain that the seuda should be done immediately in the morning after megila.
Kaf Hachaim (695: 23) cites Siddur Harashash that also asserts it should be done after shacharis. Likutei Mahariach and Kisei Rachamim mention that this was also the minhag of the G’ra. (And the seuda should be fleishig – See Piskei Teshuvos 695: 5 n. 28).
Yafe Lalev maintains that the morning seuda should be dairy to symbolize Kabbolas Hatorah that was reiterated on Purim.
However, Mishna Berura (ibid.: 15) opines that even after having eaten the morning seuda, the second seuda consumed in the afternoon is the one called properly the Purim Seuda.
Horav Shlomo Miller’s Shlit’a opinion is similar and adds, that after all we eat daily breakfast, why should Purim be any less.”
Regarding if the first meal should be fleishig or dairy the Rov’s opinion is that it is preferable that the first meal should be dairy.
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a