I remember when they cut the deal in '96, Eisner debated a large McD's in Disneyland's Adventureland (possibly tearing down an attraction to build it)...plan didn't go over very well.
Only the fries wagon was put there. However, Burger Invasion which was a Mcdonalds with big macs etc. was built in California Adventure. Lots of public backlash on that decision. I really don't like any commercial branded restaurants in the parks. Not sure I like Starbucks being in the parks!