Yes, there have been many occasions when I ate with many people.
One such occasion was the marriage of my friend's sister. Many people were at the hall for cooking and serving the food.
Another such occasion was the birthday party of my friend.The food was cooked by her mother and served by her father, brother and sister.
Disclaimer: This is a sample answer. This question requires the students to share their own experiences and observations. Keeping this in mind, it is strongly recommended that the students prepare the answer on their own.