Grate zucchini and squeeze dry. (After squeezing, you should have about a cup.) Spray two mini loaf pans with non stick spray and line the bottom with parchment. Preheat oven to 350°.
In a large bowl, whisk together butter, eggs, zucchini, and vanilla.
Whisk in almond flour, coconut flour, whey powder, sweetener, salt, cinnamon, and baking powder.
Fold in chocolate chips and pecans. (Reserve some for the tops if you like.)
Spread batter into prepared pans. Bake at 350 for about 30 minutes, or until a toothpick inserted in the middle comes out clean.
Let cook in the pans for 5-10 minutes, then carefully remove. Cool completely on wire cooling racks.
Notes
Six ounces of zucchini will be about 1 1/4 cups before squeezing dry. After squeezing you will have about a cup.