CRUST:

1 pkg. dark chocolate cake mix
1/2 c. butter, softened
1 egg
1/2 c. pecans, chopped

FILLING:

1 (8 oz.) cream cheese, softened
1 (14 oz.) can condensed milk
1 tsp. vanilla
1 egg

Heat oven to 350 degrees. Grease a 13 x 9 inch pan. In large bowl, combine cake mix, butter and egg. Mix at low speed until combined. Stir in pecans. Reserve 1 cup for topping, set aside. Press remaining mixture evenly in bottom of greased pan. Beat cream cheese until fluffy. Add remaining filling ingredients and beat at medium speed until smooth. Pour onto crust. Sprinkle evenly with reserved topping. Cool completely, cut into bars. Store in refrigerator.