Your numbers are way off. Menus are posted online at various site. Even if you picked the most expensive items you still come out on top paying out of pocket.
This does vary largely depending on restaurant choices though. It is very possible to walk away on top, but it requires planning and being mindful of prices. On my last trip, we saved $77 for a family of 3. We are light eaters, so we split our breakfast and lunch between QS credits, and paid nothing out of pocket for food.
For example, if you go to Flame Tree BBQ for lunch, they have a platter that costs 19.99, plus another 3.69 for a soft drink. Then if you go to dinner at Be Our Guest, their entrees are $21-$35. Add in a drink and dessert at about $8, and you are at $66.68. I usually budget the 2 snacks to be about $8-10. The grand total -without alcoholic or specialty beverages is about $76.68. Yes, it is a small difference, but it is possible to use the plan and come out on top.