A conveyor-type grilling appliance (200, 300) for cooking or re-5 thermalizing food, comprising: a housing (202, 302); a food insert entrance portion defined within a first end portion of said housing (202, 302) for inputting food, to be cooked, into said housing (202, 302); a food extraction exit portion defined within a second opposite end portion of said housing (202, 302) for extracting food, that has been cooked, out from said housing (202, 302); characterized in that the conveyor-type grilling appliance further comprises: a plurality of endless conveyor belt sets disposed in a side-by-side arrangement within said housing (202, 302), wherein each one of said plurality of endless conveyor belt sets defines a separate cooking lane for cooking food within said housing (202, 302) and comprises an upper endless conveyor belt and a lower endless conveyor belt cooperating with each other for propelling the food, to be cooked, from said food insert entrance portion of said housing (202, 302) to said food extraction exit portion of said housing (202, 302); and a heated platen (220-1, 220-2) respectively associated with each one of said upper and lower endless conveyor belts of each one of said plurality of endless conveyor belt sets for heating said upper and lower conveyor belts of said plurality of endless conveyor belt sets whereby said heated upper and lower conveyor belts are configured to cook the food within said housing (202, 302) while the food is transported through said housing (202, 302) from said food insert entrance portion of said housing (202, 302) to said food extraction exit portion of said housing (202, 302). a housing (202, 302); a food insert entrance portion defined within a first end portion of said housing (202, 302) for inputting food, to be cooked, into said housing (202, 302); a food extraction exit portion defined within a second opposite end portion of said housing (202, 302) for extracting food, that has been cooked, out from said housing (202, 302); characterized in that the conveyor-type grilling appliance further comprises: a plurality of endless conveyor belt sets disposed in a side-by-side arrangement within said housing (202, 302), wherein each one of said plurality of endless conveyor belt sets defines a separate cooking lane for cooking food within said housing (202, 302) and comprises an upper endless conveyor belt and a lower endless conveyor belt cooperating with each other for propelling the food, to be cooked, from said food insert entrance portion of said housing (202, 302) to said food extraction exit portion of said housing (202, 302); and a heated platen (220-1, 220-2) respectively associated with each one of said upper and lower endless conveyor belts of each one of said plurality of endless conveyor belt sets for heating said upper and lower conveyor belts of said plurality of endless conveyor belt sets whereby said heated upper and lower conveyor belts are configured to cook the food within said housing (202, 302) while the food is transported through said housing (202, 302) from said food insert entrance portion of said housing (202, 302) to said food extraction exit portion of said housing (202, 302). a plurality of endless conveyor belt sets disposed in a side-by-side arrangement within said housing (202, 302), wherein each one of said plurality of endless conveyor belt sets defines a separate cooking lane for cooking food within said housing (202, 302) and comprises an upper endless conveyor belt and a lower endless conveyor belt cooperating with each other for propelling the food, to be cooked, from said food insert entrance portion of said housing (202, 302) to said food extraction exit portion of said housing (202, 302); and a heated platen (220-1, 220-2) respectively associated with each one of said upper and lower endless conveyor belts of each one of said plurality of endless conveyor belt sets for heating said upper and lower conveyor belts of said plurality of endless conveyor belt sets whereby said heated upper and lower conveyor belts are configured to cook the food within said housing (202, 302) while the food is transported through said housing (202, 302) from said food insert entrance portion of said housing (202, 302) to said food extraction exit portion of said housing (202, 302).