Welcome to planDisney Jean!
A visit to Walt Disney World in late summer/early fall is a wonderful time to visit. Temperatures are a few degrees lower than summer and the crowds are a bit more manageable as kids return to school.
I believe what you are looking for is the
EPCOT International Food & Wine Festival. While exact dates and event details have not yet been announced, the event should be in full swing by your September arrival date. This is one event I do not miss! I love all the delicious dining options around World Showcase and I am looking forward to seeing what the entertainment line-up will be.
As you close your day out at EPCOT, do not leave early as you will not want to miss
Harmonious which takes place nightly on World Showcase Lagoon. This nighttime spectacular features music, fireworks, projections, and simply will end your day with magical brilliance! It is something you will not soon forget.
Wishing you a fabulous visit to EPCOT and all of Walt Disney World!
Cathy