Place oven racks on lowest setting. Heat oven to 350°F. Mist two standard foil loaf pans with cooking spray.
In a mixing bowl, combine sugar, eggs, and bananas and stir until well combined. Add the zucchini, buttermilk, mint extract and vanilla. Beat until smooth.
Then add the dry ingredients, lightly mixing in flour, baking soda and salt. Fold in the chocolate chips and chopped mint.
Pour the batter in to the pans. Should bake about one hour until an inserted toothpick comes out clean and the tops are golden brown. Remove loaves from pans and let cool on a wire rack or enjoy immediately!
Recipe by Brandi Koskie; Photos by Kacy Meinecke