Preheat oven to 320 degrees F (160 degrees C) .
Smear the butter in a pan and put parchment paper.
Mashed ripe bananas.
Stir together eggs and suger.
Add Bisquick mix, oatmeal and melted butter, then stir it.
Pour batter into prepared pans.
Decorate the cake with oatmeal.
Bake for about 45 or until the cake is golden brown.
and a toothpick inserted in the center comes out clean.