A conveyor-type oven is particularly well suited for cooking food products such as pizza. The oven may comprise a housing defining a baking chamber, and a primary chamber that is positioned beneath the baking chamber, the housing having an opening at each of the two longitudinal ends of the baking chamber. A continuous conveyor belt transports food to be cooked through the baking chamber, and a source of hot air is arranged to introduce hot air into the primary chamber. An upper plenum assembly is disposed in the baking chamber and includes a plurality of orifices from which to discharge hot air downwardly towards the conveyor belt, while a lower plenum assembly is disposed in the baking chamber and includes a plurality of orifices from which to discharge hot air upwardly towards the conveyor belt. Ducting interconnects the primary chamber with the upper and lower plenum assemblies, and one or more fans are operable to transport hot air from the primary chamber through the ducting to the upper and lower plenum assemblies. The conveyor-type oven enables fast, even cooking of food products while maintaining a relatively small floor-space footprint.