Preheat oven to 350 degrees Fahrenheit.
Stir together oats, flour, protein powder, sugar, salt and baking soda; set aside.
Blend peanut butter, syrup, oil and vanilla; stir in bananas.
Mix dry ingredients into wet.
Mix in remaining ingredients one at a time. Drop batter into greased muffin pan.
Bake approximately 20 minutes (until edges are turning brown); cool completely before turning out.
Notes: Substitute your favorite fruits and nuts but mind the quantities or muffins may become too crumbly after baking. I found that ingredients with an oily surface, like peanuts, will make the muffins fall apart. You can also substitute flour for the protein powder and maple syrup for the agave syrup if you like.