Any more there is no such thing as a easy walk up TS. - maybe at the Swalphin

I love this ....
Not sure if you are wanting lunch or dinner or something in between so here's a couple thoughts I had that might work out.
Head over to the Poly(using the monorail) and do QS at Capt. Hooks, they have pretty good QS offerings or for TS try Kona. Then out to the bus stand to grab a bus over to DHS.
Beaches and Cream for burgers at Beach Club.( ADR needed here)
Sci-Fi inside DHS... fun atmosphere and food and service are good as well. - You will need a ADR for this.
On the boardwalk - Either ESPN or Big River Grill might do the trick - Call directly for ressie.
You could head to Epcot - grab any CS in the world showcase, then go out the back gate, get on a friendship boat that will take you down to DHS. France and England are on each side of the canal, Either QS would be great, both have really good QS in my families opinion.
As far as QS at DHS.. We really try to skip QS here with the exception of Starring Rolls which seams to have a fair and tasty selection of a few sandwiches and salads. Our Go to is Sci-Fi we just think that its cool, and fun... and wonderful milkshakes...