Finding a chicken appetizer recipe?

I went to a wedding yesterday and they served this appetizer around and it was really good. It was like a light ery, flaky, pastry covered outside and in the inside it had small chicken slices. the appetizer is smaller than your palm, i'd say the size would be around 2/3 of your palms. It also had a beef kind, instead of chicken. Anyway, whoever has this recipe..thanks in advance! =]