you have to book the breakfast separately, you can do this at check-in.
I found someone who reported the prices in October 2016, to give you a rough estimate. I imagine all prices have gone up a bit since then:
Santa Fe 11Ä adult, 7Ä child.
Cheyenne 11Ä adult, 7Ä child.
Sequoia Lodge: 13Ä adult 10Ä child.
Newport Bay: 25Ä adult, 10Ä child
New York: 25Ä adult, 10Ä child.
Disneyland Hotel: 40Ä adult, 20Ä child.