Preheat oven to 350°F.
Grease and flour two 8×4 inch loaf pans, liberally or line 24 muffin cups with paper liners.
In a large bowl, beat the eggs with a whisk. Mix in oil and sugar, then zucchini and vanilla.
Combine flour, cinnamon, nutmeg, baking soda, baking powder and salt, as well as nuts, chocolate chips and/or dried fruit, if using.
Stir this into the egg mixture. Divide the batter into prepared pans.
Bake loaves for 60 minutes, plus or minus ten, or until a tester inserted into the center comes out clean. Muffins will bake far more quickly, approximately 20 to 25 minutes.