Ground Beef Pizza Pie
["1 lb. ground beef", "1/2 tsp. garlic salt", "1/3 c. bread crumbs", "2/3 c. milk", "1/3 c. catsup", "1 (2 oz.) jar mushrooms", "1/4 tsp. oregano", "1 Tbsp. Parmesan cheese", "4 slices American cheese"]
["Mix first 4 ingredients together in a bowl.", "Press against bottom and sides of 9-inch pie pan.", "Combine catsup, mushrooms, oregano and Parmesan cheese in a small bowl.", "Spread over beef mixture.", "Garnish with American cheese.", "Bake at 400\u00b0 for 30 minutes.", "Cut into wedges.", "Yields 4 servings."]
["ground beef", "garlic salt", "bread crumbs", "milk", "catsup", "mushrooms", "oregano", "Parmesan cheese", "American cheese"]