1
: Preheat oven to 375°F (190°C). Grease or line muffin cups with paper liners.
2
: Stir together flour, sugar, oats, cocoa powder, baking powder, baking soda and salt in a large bowl.
3
: Whisk milk, oil and egg in a separate bowl.
4
: Add milk mixture and grated zucchini to flour mixture, stirring until just combined.
5
: Spoon batter into prepared muffin cups.
6
: Bake in preheated oven 13 to 15 minutes, or until a toothpick inserted in center of muffin comes out clean. Cool on wire cooling rack.