Banana snack cake

A cake version on banana bread.  So moist that is doesn't require any frosting.
1 c margarine (softened)
1 c sugar
2 eggs
1/2 c buttermilk
1 c (2 med) ripe mashed bananas
1 tsp vanilla
2 c flour
1 c quick rolled oats
1 1/2 tsp soda
1/2 salt
6 oz. pkg milk chocolate chips
1/2 c chopped nuts

Heat oven to 350 degrees.  Grease 13x9 inch cake pan.  Cream margarine, sugar, and eggs.  Stir in buttermilk, bananas and vanilla.  Stir in flour, oats, soda and salt.  Stir in chocolate chips and nuts.  Bake at 350 degrees for 30 - 35 minutes.
-Dana Rae B