The present invention provides a barbecue (100) having an outer cabinet (1) which is adapted to fit into a bench top via hole in said bench, said cabinet (1) having an upper periphery adapted to engage an upper surface of said bench, said barbecue including along at least a portion of one side a trough (26) which extends downwardly from said upper periphery, said barbecue (100) having a wall (8) separating said trough (26) from a combustion chamber (2.2) wherein there is located at least one burner (2), whereby said wall (8) includes a viewing panel (8.3, 8.4) so that an operator standing close to said one side can view flame on said burner (2) through said trough (26) and said panel (8.3, 8.4). The present invention also provides a lid (200), a hotplate or griddle (12) and a grease collection system with a removable grease collector (11) which extends along at least a part of a forward edge of the hotplate (12) or grille (1325) so as to receive grease or liquid or other substances therefrom. The present invention also provides a grille assembly (1325) comprising an upper (25) and a lower grid (13) and a drop-in bench barbecue (100).