Dear Eric,
  Thank you so much for reaching out to us here at the Disney Parks Moms Panel with your question about the 
Disney Dining Plan. 
 I understand wanting to be very careful about how you use your Disney Dining Plan meal credits. At character or buffet meals, or at dinner shows, you will be using a 
Table-Service credit (or two, depending on the restaurant or dining experience) per PERSON, and there is no sharing of credits. The way that I think of it is that you are paying more for the experience for those meals, so you must use your credits.  
 When you are at a Table-Service restaurant that is not a fixed price but is more of an order per entree type of thing, then you can split a meal if you are not that hungry. If you are splitting a credit, then you will only have one beverage, one entree, and one dessert, of course. 
 When it comes to 
Quick-Service meals, it is super easy to split a meal and just to use one Quick-Service credit for two people if your appetite is not that big for a particular meal.  
 I hope that helps with your magical planning! 
 - Jan K.