Lemon Sheet Cake
["1 (18 1/4 oz.) pkg. lemon cake mix", "4 eggs", "1 (15 3/4 oz.) can lemon pie filling", "1 (3 oz.) pkg. cream cheese, softened", "1/2 c. butter or margarine, softened", "2 c. confectioners sugar", "1 1/2 tsp. vanilla extract"]
["In a large mixing bowl, beat the cake mix and eggs until well blended. Fold in pie filling. Spread into a greased 15 x 10 x 1-inch baking pan. Bake at 350\u00b0 for 18 to 20 minutes or until a toothpick inserted near the center comes out clean. Cool on a wire rack."]
["lemon cake mix", "eggs", "lemon pie filling", "cream cheese", "butter", "confectioners sugar", "vanilla extract"]