I am going down Aug 27 - 30 with DD19 and my Mom 85 and will be staying at POFQ. I have never used the dining plan. Please help me understand what everyone is talking about with the free dining plan?

Last time I was down there was in 2011 and we brought our own food, stayed at Kidani Village (sister is a DVC member) so we didn't get a dining package. I would love to take advantage of any package that will help on the food cost. Thanks for any help!