Preheat the oven to 350 degrees. Prepare 12-15 muffin tin vessels with liners or by spraying with cooking spray.
In a large bowl, combine oil, brown sugar, eggs, and vanilla.
Combine well. In a separate bowl, combine flour, salt, baking powder, baking soda, cinnamon, nutmeg, and cloves.
Stir into the wet ingredients until just combined. Add zucchini, carrot, and nuts. Fold them into the batter.
Spoon the batter into prepared muffin tin, filling ¾ of the way full. Bake for 16-20 minutes, until a toothpick can be inserted and when removed, comes out clean.