First, get parkhoppers if you can! How many days are you visiting the parks?
Other than some dining packages for shows (and Plaza Inn breakfast),
Disneyland dining doesn’t book up right away, so I wouldn’t stress too much. You can also make a few reservations and cancel the ones you don’t want (if you want to do a Plaza Inn breakfast, a Blue Bayou Fantasmic package, etc., I’d do that).