Pumpkin mini-muffin recipe?

You might try any of the pumpkin cake or loaf recipes on the site, like this Ginger Molasses Pumpkin Bread:

http://www.food52.com/recipes/10755_ginger_molasses_pumpkin_bread

You can pour the batter into muffin cups, as long as you watch them carefully while they bake -- don't let them dry out!