Srila Bhaktisiddhanta Sarasvati Thakura states that one of these servings was offered in a metal dish and was meant for Krsna, whereas the other two were placed on big banana leaves. The offering on the metal plate was personally offered by Advaita Acarya to Krsna. The other two servings, on banana leaves, were to be accepted by Sri Caitanya Mahaprabhu and Lord Nityananda. That was Advaita Acarya's intention, but He did not disclose this to Sri Caitanya Mahaprabhu. Thus when Sri Caitanya Mahaprabhu saw the food offered in three places, He thought that all of it was meant for Krsna.