Step 3) Combine potato ingredients in a separate bowl and stir to combine. Pour onto prepared pan; spread into a single layer and place into hot oven. Roast for 25 to 30 minutes stirring once, until potatoes are lightly browned and tender. Remove pan from oven, cool for 3 minutes. Using a spatula, transfer cooked potatoes into the bowl with tomato mixture and stir to combine. Serve immediately.