The Holy Prophet Muhammad (SAW) never ate reclining. While taking meals it is desirable to sit in a manner that the knees are upwards and the bottom of the feet touches the ground or in a manner that only right knee is kept upward and the left knee touches the ground making a sitting posture. The Holy Prophet (SAW) as a gesture of courtesy used to keep the inner side of his left foot over the back of the right foot.
Another gesture of the Holy Prophet (SAW) courtesy was that he never found fault with the food. If he liked it he ate it, otherwise he did not touch it but he never passed any remark as to whether it was bad or sour, or that the salt was not according to taste or that the soup was thin or thick. [Madarij-un-Nubuwwah]
The Holy Prophet (SAW) used to say Bismillah before beginning to eat and used to praise Allah at the end. He used to wash his hands before taking meals, ate with his right hand and from before him. [Zad-ul-Ma’ad]
While eating he would never put the whole of his fingers into the food. His habit was to eat with three fingers, and he used to lick them clean. In some traditions it occurs that he used to lick the middle finger first, then the forefinger and after it the thumb. If an item of food was thin, he would also use the ring finger, but only rarely. [Muslim, Tabrani, Khasail-e-Nabawi]
The Holy Prophet (SAW) never blew in any food or drink and considered it to be a bad habit. He did not smell the food and thought it undesirable. [Nashr-ut-Tib]
Related Article: Importance of Cleanliness in Islam in the light of Hadiths of Prophet (SAW)
If there was one item of food only, he would take it from before him and if there were more items but in one dish, he would extend his hand to other sides also. After meals he would wash his hands and dry them by rubbing then together or on the face and head. In one of the reports, drying the hands on the other parts washed in wudhu has also been mentioned.
The Holy Prophet (SAW)said that one should eat and drink with his right hand for Satan eats and drinks with the left hand. [Khasa’il-e-Nabawi]
If someone began eating food without having recited Bismillah, The Holy Prophet (SAW) held his hand and commanded him to say Bismillah. [Zad-ul-Ma’ad]
One will not be questioned for a bounty on the Day of Reckoning which is preceded by Bismillah and followed by Alhamdulillah.
Aisha (RA) has related: ‘The Holy Prophet (SAW) once said, “What a nice condiment vinegar is.” Abu Usaid (RA) has related that the Holy Prophet said: “Use olive oil in food as also for anointing, for this comes from a blessed tree.” [Shamail-e-Tirmizi]
Aisha (RA) has related that the Holy Prophet (SAW) had a liking for vinegar, olive oil, sweets and honey. The Holy Prophet is reported to have eaten chicken, red duck, mutton and flesh of camel. He relished Surid (bread crumbled and mixed with soup which may have pieces of meat in it). He also ate black pepper and spices. He is reported to have eaten dates (raw, ripe or dried)beet and hasa (soup made of flour, water and either oil or clarified butter/cheese).