Meatloaf With Mushroom Gravy

Name: Meatloaf With Mushroom Gravy
Ingredients: For the Meatloaf:; 2 pounds ground beef (85% lean); 2 tablespoons grated onion; 1 large egg; 3/4 cup quick oats; 3/4 cup milk; 1/4 cup ketchup; 1 tablespoon Worcestershire sauce; 1 teaspoon salt; 1/4 teaspoon ground black pepper; 1/2 teaspoon dried herb blend (fines herbes, or dried leaf sage or thyme); Optional: 1/2 teaspoon crushed garlic; For the Mushroom Gravy:; 1 tablespoon vegetable oil; 1 tablespoon butter; 12 to 16 ounces mushrooms, sliced; 2 tablespoons all-purpose flour; 1 1/2 cups beef stock; 1 teaspoon gravy browning sauce (Gravy Master or Kitchen Bouquet); 1/2 teaspoon Worcestershire sauce; Salt to taste; Pepper to taste