Pre-heat oven to 350 degrees F.
Place a large roasting tray into the oven to heat it up. When hot remove from oven and add a drizzle of olive oil. Toss potatoes, fennel and garlic onto hot sheet tray, season with salt and pepper and place into oven on a lower rack (below the veal roast). Roast for 60 minutes until golden and caramelized.