Meat

Meat is the food that replaced Mushrooms in Paper Mario: The Thousand-Year Door during Bowser's special sidescrolling levels. Like the Mushrooms make Mario big, Meat makes Bowser bigger. They can be found by hitting a ? Block. Getting all of the meat in the level will make Bowser gigantic, allowing him to smash through everything in the level, similar to Mega Mario.

Interestingly, the Meat does not appear outside Bowser's events.