I think most of the fast food places at the monorail resorts and WL are about the same in terms of price, selection, and quality of food.
We used vouchers at the Roaring Forks at WL and at least broke even---I had a chicken sandwich with fries and DH had a cheeseburger with fries. One of us had a garden salad and one had fruit salad. Both had large sodas, and a mickey bar and a cookie sandwich for dessert.
I also had 2 grilled cheese sandwiches for the kids and the CM didn't charge us for them---he said they could count as a "side" because the fries were already part of the entrees we had ordered. I'm sure another CM may not do the same.
HTH!
PS--go to allearnet.com and you can check menus/prices yourself.
edited to add--I just totaled our order on allearsnet.com and it came to just over $14.00 each before tax, so we definitely did not lose money. That is WITHOUT counting the grilled cheese sandwiches, since I don't think those would normally be included.