Trim the outer leaves from a cauliflower , keeping the nicest inner ones to add to the bake
Slice the cauliflower into large ' steaks' around 2cm thick
On a baking tray arrange the cauli steaks, tomatoes, baby potatoes, onion and the cauliflower leaves
Sprinkle over all the spices and the olive oil, mixing and rubbing them into the veggies
Place in an oven that has been pre-heated to 200C/ Gas Mark 6
Cook for around 30 mins or until golden and starting to caramelise around the edges. Cooking times will vary according how to thickly you cut the veggies and your oven. Check on them half way through!