Roughly dice a zucchini and apple - you need one cup of each.
Blend 1 cup of rolled oats in a food processor or blender until flour-like. Pour into a large bowl and set aside.
In the same food processor (no need to wash), blend 1 cup of apple, 1 cup of zucchini, and one medium (very ripe) banana. If there's room, now add the eggs, vanilla, and milk and blend (any kind of milk will work). Leave the mixture aside for a moment.
Now add the following to the large bowl with the blended oats: whole wheat flour, baking soda, cinnamon, and salt. Stir well.
Add the wet ingredients to the large bowl with the dry ingredients: blended fruit and veggie mixture, sugar (honey or maple syrup also work), and 1/4 cup of melted butter OR coconut oil. Mix well.
Spray a mini muffin tin with cooking spray, then spoon the mixture in. Fill each muffin spot almost to the top.
Bake for 10 minutes, or until a toothpick comes out clean and the sides just begin to brown. Remove onto a cooling rack. Repeat until the batter is gone.
This will make about 50 muffin bites. Once cooled, store in an airtight container for a few days on the counter, or freeze leftovers. **NOTE: if your food processor is too small to handle the whole wet mixture at once, blend just a few ingredients at a time and then just add the milk and eggs to the mix in the large bowl when combining with the dry ingredients.