Root Vegetable Gratin

Method:

1. Preheat oven to 200C/Gas 6.
2. Slice the vegetables into even discs.
3. Layer them into a gratin dish, standing up, packed in together, alternating colours of vegetables.
4. Push the garlic, bay, sage and rosemary leaves in between the vegetables. 
5. Drizzle with olive oil, sea salt and semolina. 
6. Bake for 1 hour until cooked and the tops are crispy.