Quiche
["1 pie crust, baked", "1 lb. hamburger", "1 c. shredded Cheddar cheese", "1/3 c. Parmesan cheese", "1 c. milk", "3 eggs", "3/4 tsp. garlic salt", "1 Tbsp. minced onion"]
["Brown hamburger.", "Drain and put in pie crust.", "Beat milk and eggs.", "Add remaining ingredients.", "Pour over hamburger in pie crust.", "Bake at 350\u00b0 for 40 minutes."]
["pie crust", "hamburger", "Cheddar cheese", "Parmesan cheese", "milk", "eggs", "garlic salt", "onion"]