Preheat oven to 350° F
In a large bowl, combine eggs, ricotta cheese, sugar, and lemon peel; set aside.
In another large bowl, combine cake mix, water, oil, lemon juice, and eggs; beat on low speed for 30 seconds. Beat on medium for 2 minutes.
Pour into a greased 13-x-9-in. baking pan. Carefully spoon ricotta mixture on top of cake batter.
Bake at 350° for 60-65 minutes or until lightly browned. Cool on a wire rack for one hour.
Refrigerate overnight. Dust with confectioners’ sugar; cut into squares. Refrigerate leftovers.
