BASE:

1 pkg. Devils Food cake mix
1/2 c. butter, softened
1 egg
1/2 c. chopped walnuts

FILLING:

8 oz. pkg. cream cheese, softened
14 oz. can sweetened condensed milk (NOT evaporated)
3 tbsp. lemon juice
1 tbsp. grated lemon peel
1 egg

Heat oven to 350 degrees. Grease 13"x9" pan. In large bowl, combine cake mix, butter and egg; mix at low speed until combined. Stir in walnuts. Reserve 1 1/2 cups for topping; set aside. Press remaining mixture in bottom of greased pan. Bake at 350 degrees for 10 minutes; cool 5 minutes.

Beat cream cheese in medium bowl until light and fluffy. Add remaining filling ingredients and beat at medium speed until smooth. Pour evenly over partially baked crust; sprinkle with reserved topping. Bake at 350 degrees for an additional 20 to 25 minutes or until center is set. Cool completely. Cut into bars. Store in refrigerator. 36 bars.