Your hotel will have CS breakfast options.
We had breakfast at the Pepper Market (Coronado Springs) a few mornings, since it was a CS option that was a very good value. We had a car, though, and it was on the way to and from our hotel (ASMusic).
Breakfast wasn't a big deal to us so we were often happy grabbing snacks that were breakfasty, like the box of donuts, and eating those on the way to the park. I also stop at the grocery store and pick up a few things to enjoy in the room.