Place garlic on tray. 1. Place both types of Preheat the oven to 200ÂșC, gas mark 6. Set aside. Place the cherry tomato halves in a single layer on lined tray. Drizzle the tomatoes with 1 tsp of the oil and season with salt and pepper. Roast tomatoes and garlic in preheated oven for 30 minutes or until tomatoes shrivel around edges and garlic is soft. Remove from oven and squeeze garlic from skin, chop roughly and place in a small bowl.