Disclosed is a cooking apparatus including a cooking chamber and, being open in a first direction, a shelf insertable into the cooking chamber in the first direction and including a container, and a magnetron to generate a high frequency to be supplied to the shelf, wherein the shelf includes a heat generating member to generate heat by the high frequency generated from the magnetron, the container includes a first container disposed on one side in a second direction orthogonal to the first direction, a second container disposed on the other side in the second direction, and a holder to detachably support the first and second containers, the heat generating member includes a first heat generating member disposed on the first container to provide heat to the first container, and a second heat generating member disposed on the second container to provide heat to the second container.