I did this in December. I got the ham, egg, and cheese croissant, Orange juice and a milk for one CD credit. I also used a snack credit for a cinnamon roll and DH and I just split everything.
I'm not sure if this happens a lot or not, but the CM at the register made some "custom" breakfasts for us. By custom I mean different combinations of the breakfast foods they offered for the DDP. The combinations were not what was printed on the menu. Maybe this is common practice, but it worked out nice for us. If memory serves, the 5 of us had breakfast using 3 dining credits.