Catherine,
Thanks for writing back!
So I still think that some of my recommendations in the previous answer are good ideas. But let's explore a bit more of what you could do.
First, Cars. One restaurant I did not include in the last reply is the
Sci-Fi Dine-In Theater. At this Hollywood Studios eatery you get to sit in a "car" at a drive-in movie theater. Now it is not "Cars, the Movie" themed, but it might be a good place to celebrate. The menu is decidedly kid-friendly, and you could have some Cars-themed presents for him to open. Plus, the Cars greeting area with Lighting McQueen and Mater is nearby.
As for the Buzz and Woody, again, there is no meal specifically themed to them. But you could still go to the
Whispering Canyon Cafe. It is definitely western themed, and you could do much the same with some Woody & Bullseye-inspired presents.
If it were me I would go with one of these and have a few portable presents for him to open. Maybe a themed shirt with the related character on it? Some smaller toys?
And a final suggestion is to order him a birthday cake with his related character on it. Since these are both less expensive than the meals you got your daughter, you can consider it leveling the budget playing field. Order the cake, personalized to him, by calling ahead to (407) 827-2253.
I hope that this helps?
Have a magical (and delicious) vacation!