BTW - Always ask what is included in the dining plan in each location. We had a milkshake under the dining plan at 50's Prime Time in June. You can't assume that is always the case in every location, but it never hurts to ask.
One thing they don't have flexibility with is appetizers. We haven't been able to switch those with anything else, so when we wants appetizers, we pay OOP. You will also pay OOP for the tips.