It would depend on the number of people. What type of reception - finger foods, meal, cake/punch type of deal.
How Much Food Should I Serve At A Wedding Reception?
It all depends on how many people response back to rsvp. Once they response back then you will have an idea of how much food.
To ensure that you have enough; just X 2 for each person attending and you should have more than enough for the festivities.
