A container formed from a single piece of cardboard or like materials may double as a plate. The single piece may generally take the form of an oval, and may include a number of panels separated by specifically oriented creases and folds which enable the single piece to be folded into the container, and contain a food product such as a sandwich therein, or unfolded into a plate-like flat surface from which the food product may be eaten by a customer. A frame including a plurality of elbows, pegs or other extensions may be used to form the single piece into a semi-folded state, facilitating processes for preparing or packaging the food product.