We were at the MK on July 4th 2004. We ate at Tony's for Lunch. It was a bit pricy but the food was good. We made ADRs and had no problem being seated. We just had snacks around the MK for dinner.
Make sure you get to the MK right when it opens on the 4th. We did this and were able to ride all of the big attractions before the park became busy. We made a lunch ADR for 11:30 AM and when we got done with lunch the park was swamped. We went on all of the less popular rides all afternoon (Hall of Presidents, CoP, Enchanted Tiki, Riverboat, etc.). Waits for the popular rides were all over 1 hour.
We had alot of fun that day but don't plan on getting too much accomplished after noon at the MK.