2In a bowl, mix broth, egg, Worcestershire, seasonings, bread crumbs, catsup and onion. Let stand about 5 minutes. Stir in ground beef and mushrooms.
3. Form into loaf on rack in 9 x 12 inch baking dish. Unroll puff pastry; form pastry around beef loaf and seal. Save small bits of pastry to garnish loaf if desired. Bake at 375 for 45 minutes. Garnish with mushroom slices. Serves 4 to 6
Source: My Old Recipes