The word "feast" is used when there is a large amount of food prepared for a special gathering, usually a holiday, but it can be used for any occasion.
We’re going to prepare a Thanksgiving feast for our guests in a few weeks.
After the Hajj, Muslim people around the world celebrate Eid with a feast.
People like to go to buffet restaurants because they can feast on as much food as they want. (In this sentence, "feast" is used as a verb and it means to eat.)
This is a feast fit for a king.
~ a feast fit for a king ~
You can also use the word "feast" metaphorically:
The poems in this book are a feast for the imagination.
The technology conference offered a virtual feast of new gadgets and electronic toys.
The word "feast" is included in the expression "feast your eyes" when something is interesting or fascinating:
Feast your eyes on this! It’s the all new electric Tesla Model S.
We couldn’t help but feast our eyes on all the old and beautiful buildings and houses in Heidelberg.
