No appetizer. One entree, one dessert and one nonalcoholic beverage per credit (or per 2 credits at signature restaurants). Or, a full buffet plus nonalcoholic beverage. Or full offerings at any family style, price fixed all you can eat restaurant, plus nonalcoholic beverage.
At dinner shows, which cost 2 credits, full meal offering - they're all you care to eat - and show plus beverage (alcoholic or not - but you're limited to the alcoholic beverages that are included with the menu - if you order a different one you need to pay for it)