If you have a car, I would highly recommend simply driving.
So long as you have an ADR, you are permitted to park at the resort for your dinner. The tricky part is if you are also planning to go to the Magic Kingdom. If so, you cant use the standard resort parking to eat and then go to the theme park. The way around this is using the valet. If you have an ADR and pay to use the valet, you can park at the resort, enjoy your meal and then go to the theme park.
We use the valet last year and it worked out great. We drove to the GF, valeted our car, had a wonderful dinner at 1900 Park Fare, rode the monorail to MK, saw Spectromagic, caught the monorail back to GF, retrieved our car, and went back to our resort.
This was one of our best evenings of the trip.