Taking the monorail from Poly to GF is a breeze if you're close to the monorail station and are going somewhere close to the GF monorail station. As far as Gasparilla Grill (counter service at GF), taking the monorail would be the quickest route, I guess. It's getting back to the Poly that would NOT be very convenient via monorail, as you'd have to stop at the MK, then Contemporary, then Ticket and Transportation Center and THEN Poly. The walk is a nice one, weather permitting. I do it all the time to get to the Spa and then pick up my daughter at Neverland Club