Described herein is a cooking pot comprising (a) a food vessel that has an opening in the shape of an oval or a polygon with more than two sides, and (b) a lid sized and shaped to substantially cover the opening of the food vessel. According to some embodiments of the present disclosure, the lid has a ring protruding from the bottom face, concentric about a vertical axis of the vessel. When the lid is rotated about the vertical axis at an angle from a closed position, the protruding ring is positioned adjacent to an interior edge of the vessel, corners or vertices of the opening are uncovered, and corresponding corners or vertices of the lid hang over the vessel exterior.