Banana Zucchini Walnut Bread

3/4 cup vegetable oil
2/3 cup brown sugar, packed
1 cup white sugar
3 eggs
1 cup grated zucchini
2 bananas, mashed
2 teaspoons vanilla extract
3 1/2 cup all-purpose flour
1 tablespoon cinnamon
1 1/ teaspoon baking powder
1 teaspoon baking soda
1 teaspoon salt
1/2 cup walnuts, chopped

Preheat oven to 325 degrees F. Butter and flour two 9-inch loaf pans.

In a large bowl, beat the eggs until light and fluffy. Add oil, brown sugar, sugar, grated zucchini, mashed bananas, and vanilla. Blend together until well combined. Stir in the flour, cinnamon, baking powder, baking soda and salt. Add the walnuts.

Divide the batter evenly between two 9-inch loaf pans and bake until a toothpick inserted into the center comes out clean, about 1 hour. Allow to cool in the loaf pans for about 15 minutes. Remove from the pans and place on a wire rack to cool completely.