Beat 3 eggs to blend. Add vegetable oil, sugar, and vanilla. Beat until thick and foamy. Stir in shredded zucchini and pineapple. Set aside.
Combine flour, baking soda, baking powder, cinnamon, nutmeg. Stir gently into mixture until just blended.
Pour into 2 greased bread pans and bake at 350°F until done. Use the toothpick test.