Rosie’s All American Diner is part of Sunset Ranch Market on Sunset Boulevard. You’ll find it across from the entrance to Beauty and the Beast and Fantasmic near the back of the area before you arrive at Tower of Terror.
It offers your usual Disney hamburgers and nuggets along with the Onion Straw Cheddar Cheeseburger:
This was actually a decent hamburger with most everything that is good in this world. Obviously we’re missing bacon, beer, and several things that can’t be mentioned on a family friendly(?) website about Walt Disney World. Disney really needs to do something with their buns, though. They are complete garbage and the thought of somehow having a “healthy” wheat bun in between onion rings, cheddar cheese, and what I’m sure is 5% lean ground beef is somewhere between laughable and absurd. Can I get a Wonder Classic White, please? It would make their burgers and dogs so much better. But the tomatoes and pickles were crunchy and fresh and the onion straws add a bit of a zing to your usual Disney burger. Recommended and one of the best quick service hamburgers you’re likely to find.