Cooking appliance, comprising - a cooking chamber spatially delimited by walls, - a door, - at least one heating element and - at least one receiving unit and - at least one guide rail arranged on a side wall of the walls, the door being able to be moved between a closed position, in which it spatially closes off the cooking chamber from an environment, and an open position, in which it releases the cooking chamber, the cooking chamber being able to be heated by means of the heating element, the receiving unit being arranged in a force-transmitting manner on at least one wall of the cooking chamber, the receiving unit having at least one elongate contact region extending at least substantially in parallel with a side wall of the cooking chamber, by means of which contact region at least one food carrier can be received such that the food carrier is arranged horizontally oriented within the cooking chamber and at a distance above a base of the cooking chamber, the receiving unit comprising at least one carrier element and at least one push element, the carrier element being connected in a force-transmitting manner to the wall associated with the receiving unit, and the push element having the contact region, the carrier element and the push element having complementary form-fit regions (13, 14) by means of which the push element can be mounted on the carrier element in a non-destructive, detachable manner, forming a form-fit, the at least one receiving unit being mounted on the associated wall thereof so as to be adjustable in height, the carrier element of the receiving unit being movable along the guide rail, characterised in that the guide rail is oriented vertically and is placed on the associated side wall or is at least partially, preferably completely, inserted into a fold of the side wall, the push element being mounted on the carrier element at the end thereof facing away from the door, the carrier element being arranged in a rear region of the cooking chamber facing away from the door. - a cooking chamber spatially delimited by walls, - a door, - at least one heating element and - at least one receiving unit and - at least one guide rail arranged on a side wall of the walls, the door being able to be moved between a closed position, in which it spatially closes off the cooking chamber from an environment, and an open position, in which it releases the cooking chamber, the cooking chamber being able to be heated by means of the heating element, the receiving unit being arranged in a force-transmitting manner on at least one wall of the cooking chamber, the receiving unit having at least one elongate contact region extending at least substantially in parallel with a side wall of the cooking chamber, by means of which contact region at least one food carrier can be received such that the food carrier is arranged horizontally oriented within the cooking chamber and at a distance above a base of the cooking chamber, the receiving unit comprising at least one carrier element and at least one push element, the carrier element being connected in a force-transmitting manner to the wall associated with the receiving unit, and the push element having the contact region, the carrier element and the push element having complementary form-fit regions (13, 14) by means of which the push element can be mounted on the carrier element in a non-destructive, detachable manner, forming a form-fit, the at least one receiving unit being mounted on the associated wall thereof so as to be adjustable in height, the carrier element of the receiving unit being movable along the guide rail, characterised in that the guide rail is oriented vertically and is placed on the associated side wall or is at least partially, preferably completely, inserted into a fold of the side wall, the push element being mounted on the carrier element at the end thereof facing away from the door, the carrier element being arranged in a rear region of the cooking chamber facing away from the door.