1. Brush a large ovenproof dish or casserole with the olive oil. Put in the potatoes and garlic.
2. Mix together the red wine, tomato puree, water, rosemary, oregano, parsley and pepper. Pour over the potatoes.
3. Cover and bake in a preheated oven at Gas Mark 5,375°F, 190°C for 1 1/4 hours, or until the potatoes are tender. Serve hot.