Heat oven to 400°. Grease 9-inch pie plate. Spread ricotta cheese in pie plate; sprinkle with Parmesan cheese. Cook ground beef until brown; drain. Stir in 1/2 cup of the mozzarella cheese, 1/2 cup spaghetti sauce and the salt; spoon evenly over cheeses. Stir baking mix, milk and eggs until blended. Pour into pie plate. Bake 30 to 35 minutes or until knife inserted in center comes out clean. Sprinkle with remaining cheese. Bake 1 to 2 minutes longer or until melted. Cool 5 minutes. Serve with additional spaghetti sauce.
Makes 8 servings
High Altitude (3500-6500 ft): Heat oven to 425°. Decrease milk to 3/4 cup. Increase first bake time to 35-40 min.
1 Serving: 260 calories (135 calories from fat); 15 g fat (7g saturated); 100 mg cholesterol; 510 mg sodium; 10 g carbohydrate (0 g dietary fiber); 20 g protein.