Khalid said: AbuZiyad Khiyar ibn Salamah asked Aisha about onions. She replied: The last food which the Messenger of Allah ﷺ ate was some which contained onions. (Using translation from Abū Dāʾūd 3829)
«إِنَّ آخِرَ طَعَامٍ أَكَلَهُ رَسُولُ اللهِ ﷺ طَعَامٌ فِيهِ بَصَلٌ»