Can't leave alone bars

Yummy, super simply, very small clean up bars. Yes, I couldn't wait to eat it, so you only get to see half of the creation!

1 package of white cake
2 eggs
1/3 cup oil

1 can sweetened condensed milk
1 cup semi sweet chocolate chips
1/4 cup butter
1/3 cup coconut
1/2 cup walnut

mix first 3 ingredients. Press 2/3 of mixture in a greased 9x13 pan. In a microwave safe bowl mix remaining ingredients and melt in microwave 45 sec stir and melt 45 sec more until chocolate chips are smooth. Pour over cake and drop teaspoons of left over dough onto the chocolate mixture. Bake @ 350 for 20-30 min or until slightly brown. EAT EAT EAT. Add some yummy ice cream to over do that treat!