Ham And Cheese Tart
["1 (9-inch) refrigerated pie crust", "8 (1 oz.) slices process American cheese, divided", "2 c. finely chopped, cooked ham", "2 c. chopped onion", "2 Tbsp. butter or margarine, melted", "2 large eggs, lightly beaten", "1/2 c. milk", "3 Tbsp. grated Parmesan cheese", "dash of pepper"]
["Roll pie crust into a 13-inch circle; place onto a 12-inch pizza pan.", "Fold edges under and crimp; prick with a fork.", "Bake at 425\u00b0 for 10 minutes; cool.", "Arrange 6 slices cheese, overlapping, on baked crust.", "Sprinkle with cooked ham.", "Cook onion in butter in a large skillet over medium-high heat, stirring constantly, until tender.", "Remove from heat.", "Stir in eggs and next 3 ingredients.", "Spoon over ham.", "Cut each of the remaining 2 cheese slices into 9 squares.", "Arrange on top.", "Bake at 425\u00b0 on lower rack of oven 15 minutes or until set.", "Let stand 10 minutes before serving.", "Yields one 12-inch tart."]
["crust", "American cheese", "onion", "butter", "eggs", "milk", "Parmesan cheese", "pepper"]