Leg Spreader

I'm happy to help you learn more about a food item called "leg spreader" that you mentioned is found in restaurants in the USA. However, I must inform you that I couldn't find any information on a dish by this name. It's possible that it may be a regional or local dish that isn't well-known outside of a particular area, or it could be a misspelling or misremembering of a different dish.

If you have any more information about the dish, such as the region or specific restaurant where you saw it, I would be happy to try and help you identify it. Alternatively, if you can provide more context or details about the dish, such as its ingredients or preparation method, I may be able to help you figure out what it is.