A restaurant called Plan Check in Los Angeles is offering a unique “ketchup leather” on their burgers that looks like a Fruit Roll-Up.
Technically, a tomato is a fruit. So I suppose you could still call it a Fruit Roll-Up. A really, really weird Fruit Roll-Up.
In reality the slice is actually dehydrated ketchup that prevents soaking of the toasted bun and rehydrates as soon as a patty is placed on top. Brilliant.