There is the dining plan open to people who book packages which includes room, tickets and dining.
There is also a dining card - the 'disney dining experience' which is only open to Florida residents or annual passholders. This card costs $85/year for Florida residents or $60/year for annual passholders. At participating restaurants - which are mostly table service you save 20% off the cost of the meal and alcohol. It's also good at counter service restaurants in AK, the value resorts and POFQ (as these resorts don't have a TS restaurant).