Preheat your oven to 350°F (175°C).

In a large mixing bowl, whisk together the eggs, vegetable oil, sugar, and vanilla extract.

Add the grated zucchini to the mixture and stir well.

In another bowl, combine the flour, baking soda, baking powder, salt, cinnamon, and nutmeg.

Gradually add the dry mixture to the wet ingredients until just combined.

Fold in the chopped nuts if using.

Grease and flour two 9x5 inch loaf pans.

Divide the batter equally between the pans.

Bake for 50-60 minutes or until a toothpick inserted into the center comes out clean.

Let the bread cool in the pans for a few minutes before transferring to a wire rack.