CS for lunch on DDP includes entrée/combo meal, 1 non-alcoholic beverage and dessert.
Example from lunch menu at BOG would be Braised Pork entrée, soda, and strawberry cream cheese cupcake= 1 CS credit.
Soups are snack credits.
I tried to include a link to the menu but I don't have enough posts under my belt to do so

You can get it right from the Disney website then BOG, click menu then use the drop down to select lunch or an AllEars search will