My dog's peanut butter, banana, carrot birthday cake

Ingredients

• 1 Cup whole wheat unbleached flour
• 1 tsp baking soda
• 1/4 Cup peanut butter
• 1/4 Cup vegetable oil
• 1 Cup shredded carrots
• 1 tsp vanilla
• 1/3 Cup honey
• 1 egg

Banana Cream Cheese Frosting:

• 1 Ripe Banana
• 6 ounces non-fat cream cheese
• 1/2 tsp vanilla