Spicy Turkey Roast
["1 frozen whole boneless turkey (4 lb. thawed as pkg. directs, 8 to 10 servings)", "8 to 10 large cloves garlic", "3 Tbsp. rosemary", "1 Tbsp. coarsely ground black pepper", "1 tsp. coarse kosher style salt", "2 Tbsp. olive oil", "orange slices (for garnish, optional)"]
["Remove mesh from thawed turkey.", "Lay turkey out as flat as possible on a cutting board, placing the skin side down."]
["turkey", "garlic", "rosemary", "ground black pepper", "kosher style salt", "olive oil", "orange slices"]