you can always pay for a taxi or towncar to these resorts for about $15 one way. you can also take the bus from the resort to dtd or one of the other park buses then transfer by bus, monorail or boat to the resort restaurant from there.
you might also want to schedule your resort restaurant meals with your park days. like the wilderness lodge, gf, poly, cnt & magic kingdom in the same day/s, you can then take the boat or monorail from mk. for the dolphin plan your day at mgm & then take the friendship boat from mgm to the dolphin.