Upside-Down Pizza
["1 lb. hamburger", "1 small onion", "1/2 tsp. salt", "1 (14 oz.) jar Ragu spaghetti sauce (thick and zesty)", "2 eggs", "1 c. flour", "1 c. milk", "1 (16 oz.) pkg. Mozzarella cheese", "1/4 c. Parmesan cheese", "pepperoni", "mushrooms"]
["Brown hamburger and onion.", "Add salt.", "Drain grease.", "Add hamburger to spaghetti sauce.", "Pour hamburger mixture in ungreased 9 x 13-inch pan.", "Add pepperoni, mushrooms or whatever you like on pizza.", "Sprinkle Mozzarella cheese on top. Combine in bowl eggs, flour and milk.", "Beat until smooth.", "Pour batter evenly over top of cheese. Sprinkle Parmesan cheese on top.", "Bake at 400\u00b0 for 30 minutes or until crust is golden brown. Cut into squares and serve."]
["hamburger", "onion", "salt", "eggs", "flour", "milk", "Mozzarella cheese", "Parmesan cheese", "pepperoni", "mushrooms"]