Ewwwwwww sorry but Chuck-A-Rama sounds like Hurl-A-Rama to me!

Oh what a gross name.
Although living in Vegas, the land of buffets, in casinos its generally ok to assume its an all you can eat buffet, even if its not posted.
Most restaurants that serve food buffet style, charge at the end of the line for the item/serving, sort of like a cafeteria.