Hello, Andrea,
Essentially you will have a handful choices for breakfast that you can read about
here rather than a large breakfast menu that you may traditionally find at a restaurant. When you are seated, you will get to select breakfast you'd like. If you'd like more of any of the items, you are welcome to additional servings.
If you'd like to see more, I'd visit www.disneyfoodblog.com and do a search for
Cinderella's Royal Table Breakfast. You can see lots of photos on the restaurant and the offerings (just a warning, the photos may make you hungry!).
By the way, dining at Cinderella's Royal Table is quite popular, so you will want to make reservations beforehand, preferably 180 days out.
Thank you for the question; please let us know if we can help again.