Place the potatoes in a bowl with the olive oil, butter, salt, parmesan and mixed herbs and mix everything together until fully coated. Place everything on a baking tray lined with foil and cook in the preheated oven for 20 minutes.
For the Tomatoes
Place the cherry tomatoes in a baking dish with the garlic and olive oil. Mix everything together and place in the oven for 12 minutes. Remove from the oven and top with the breadcrumbs and butter. Return to the oven for another few minutes until the breadcrumbs have browned. Once it's finished cooking top with the basil and serve.