Do I need a stylist as well as a photographer?

No, if the kitchen plates as in service and the crockery is already the menu's. You do need someone else if the dish arrives in pieces and nobody can set it down as the guest gets it. Confirm who plates on shoot day and that it is the same standard as the pass. The miss is hiring magazine styling and receiving a plate your kitchen will not make again. On a room shoot, the kitchen calls the plating and the photo records that plate.