Peanut Butter Banana Cake with Chocolate Frosting

I buy bananas at Costco. I buy 6 lbs at a time. This sounds like, and is, a lot of bananas. Strangely enough, rarely do I have one go brown. If I do, the girls are thrilled because it means I will be making bread, muffins or this awesome cake. If you left the frosting off, you could call it breakfast. But if you leave the frosting off, we can't be friends any more. If you want to eat it for breakfast, I won't tell. I will be too busy hiding in the bathroom so my kids don't see me eating cake.

Peanut Butter Banana Sheet Cake

Ingredients:
1/4 cup creamy peanut butter
1 cup milk
1/2 cup applesauce
2 squished brown bananas
1 1/2 cup  brown sugar
2 cups flour (if GF use 1 c. brown rice, 1/2 c. oat and 1/2 c. sorgum with 2 tsp xanthan gum)
1 tsp salt
1 tsp baking soda
2 eggs
1/2 cup greek yogurt
1 tsp vanilla

Frosting:
3/4 cup butter
6 Tbsp cream cheese
1/2 cup peanut butter
3 cups powdered sugar
1/2 c. coco powder 
1 Tbsp vanilla