Pre-heat oven to 350 degrees F.
Mix together olive oil, applesauce and eggs in a mixing bowl.
Chop carrots, zucchini and bananas to small pieces.
Pour the chopped ingredients into mixing bowl with the applesauce, olive oil and egg.
Add other ingredients in this mixture as well: whole wheat flour, oat bran, baking soda, cinnamon, ground nutmeg, ground ginger and salt. The mix will look something like this.
Grease baking cups with little oil and put them in muffins baking tray.
Spoon in muffin batter 2/3 full. And bake for 30 minutes.
Serve it to your little one when it is at a room temperature of warm enough.