Zucchini, Banana, and Flaxseed Muffins

Ingredients Nonstick cooking spray 1 3/4 cups all-purpose flour (spooned and leveled) 1/2 cup ground flaxseed 1 cup lightly packed light-brown sugar 2 teaspoons baking soda 1 teaspoon baking powder 1/2 teaspoon coarse salt 1 teaspoon ground cinnamon 1 1/2 cups coarsely grated zucchini (from 1 large zucchini) 1/3 cup mashed ripe banana (from 1 large banana) 3/4 cup whole milk 1 large egg, lightly beaten 1 teaspoon pure vanilla extract Directions Preheat oven to 350 degrees. Lightly coat 12 standard muffin cups with cooking spray. In a large bowl, whisk together flour, flaxseed, brown sugar, baking soda, baking powder, salt, and cinnamon. Add zucchini and banana and stir to combine. In a small bowl, whisk together milk, egg, and vanilla. Add milk mixture to flour mixture and stir until combined (do not overmix). Divide batter among muffin cups. Bake until a toothpick inserted in center comes out clean, 20 to 25 minutes. Let muffins cool completely in pan on a wi...