Olives or Eggs on the First Night of Sukkot?

MISHNA: Rabbi Eliezer says: A person is obligated to eat fourteen meals in the sukka over the course of the seven days of the festival of Sukkot, one during the day each day and one at night each night. And the Rabbis say: There is no quota for the number of meals, and one may choose whether or not to eat any of the meals except for the meal on the evening of the first Festival day of Sukkot, which one is required to eat in the sukka. And furthermore, Rabbi Eliezer said: One who did not eat a meal on the evening of the first day of the Festival should compensate with a meal on the evening of the last day of the Festival, on the Eighth Day of Assembly, despite the fact that he will not eat it in the sukka. And the Rabbis say: There is no compensation for this matter, and with regard to similar cases where it is impossible to rectify failure to fulfill a positive mitzva, it is stated: “That which is crooked cannot be made straight; and that which is wanting cannot be numbered” (Ecclesiastes 1:15). GEMARA: The Gemara asks: What is the rationale for the opinion of Rabbi Eliezer, who mandates eating fourteen meals in the sukka? The Gemara answers that he derives his opinion from the verse: “In sukkot shall you reside” (Leviticus 23:42), which the Sages interpreted to mean: Reside as you dwell in your permanent home. Therefore, just as in one’s dwelling one typically eats one meal during the day and one meal at night, so too, in a sukka one eats one meal during the day and one meal at night. The Gemara asks: And how do the Rabbis interpret that verse? The Gemara answers: They explain that a sukka is like a permanent dwelling. Just as in one’s dwelling, if one desires to eat, he eats, and if one does not desire to do so, he does not eat, so too, in the sukka, if one desires to eat, he eats, and if one does not desire to do so, he does not eat. The Gemara asks: If so, then according to the Rabbis, even on the first Festival evening as well one should not be required to eat in the sukka. Rabbi Yoḥanan said in the name of Rabbi Shimon ben Yehotzadak: There is a verbal analogy between the festivals of Passover and Sukkot. It is stated here, with regard to Sukkot: “On the fifteenth day of this seventh month is the festival of Sukkot for seven days unto the Lord” (Leviticus 23:34). And it is stated: “And on the fifteenth day of the same month is the festival of matzot unto the Lord” (Leviticus 23:6) with regard to the festival of Passover. Just as there, with regard to Passover, on the first night there is an obligation to eat matza and from that point onward it is optional, as from that point onward the only obligation is to refrain from eating leaven, so too here, with regard to Sukkot, on the first night there is an obligation to eat in the sukka and from that point onward it is optional. The Gemara asks: And there, with regard to Passover, from where do we derive that there is an obligation to eat matza on the first night? The Gemara answers that the verse says: “In the evening you shall eat matzot” (Exodus 12:18). The verse established it as an obligation.

Eating on the night of the first holiday in the sukkah is an obligation. Even if one ate a kazayit of bread, he has fulfilled his obligation. From then on, it is optional: [If] he wants to a eat a meal, he must dine in the sukkah; [but if] he wants to just eat fruits or parched grain all seven [days] outside the sukkah, he may eat [like that. It is] like the law of eating matsa on Passover.

We eat, drink and sleep in a sukkah all seven [days] — whether during the day or during the night. And it forbidden to eat a meal outside the sukkah all seven [days]...