The breakfast upstairs at Captian Kids isn't exactly sit down. It's buffet and it's pretty simple.
4 kinds of cereal/ 3 cold/ 1 instant oatmeal you mix with hot water
milk, juice/ oj, apple
coffee, tea
pastrys, bagels cream cheese, donuts
fruit
hard boiled eggs
I think you could easily grab a few things and eat as you walked across the street. Personally I think its worth it.
Now downstairs it is sitdown as you must order hot pancakes. I avoid doing that.