Preheat oven to 350 degrees F.
Line muffin tin with 12 liners
In the bowl of an electric mixer, combine avocado, banana, pumpkin, eggs, vanilla and sugar
Beat until smooth.
In a separate bowl, whisk together flour, baking soda, baking powder, cinnamon, salt and nutmeg.
While mixer is running on low, slowly add flour mixture to wet mixture, stopping to scrap down the sides
Combine until just mixed, then stir in pecans.
Using an ice cream scoop, drop batter evenly among cupcake liners.
Bake for 20-25 minutes until a toothpick comes out clean.
Store in an airtight container.