Step 1

Preheat oven to 400 degrees F. Coat a 12-cup muffin pan with cooking spray. In a large bowl, whisk together flour, brown sugar, baking soda, baking powder, nutmeg and salt until there are no lumps.

Step 2

Stir in oats and raisins. Add oil, egg, milk, carrots and banana and stir until blended. Fill each muffin cup with ¼ cup batter.

Step 3

Bake until a toothpick inserted in center of a muffin comes out clean, 18 to 25 minutes. Serve warm or at room temperature. To store, keep in an airtight container for up to 3 days.