The Dining Plan is tied to your accommodations not to your admission -- you must be staying at a Disney resort on a qualifying Magic Your Way package (or at a DVC resort on DVC points). Beyond that, unless you're staying at a DVC resort on DVC points, you are required to make admission purchase part of your accommodations package, and annual passes are not one of the options. You could, next year, apply the value of the admission pass you purchase as part of your package now towards the purchase of a new annual pass then, but that's about the only connection you can make between the two.