Step 1

Preheat the oven to 350 degrees Fahrenheit (175°C) and line a muffin tray with paper liners.

Step 2

In a large bowl, mix the flour, sugar, baking soda, cinnamon, and salt.

Step 3

In a separate bowl, beat the egg, then add in the oil, milk, lemon juice, and vanilla. Mix well.

Step 4

Add the wet ingredients to the dry ingredients, and stir just until moistened.

Step 5

Fold in the zucchini, chocolate chips, and walnuts.

Step 6

Fill the muffin liners about two-thirds full.

Step 7

Bake for 20-25 minutes or until a toothpick inserted in the center comes out clean.

Step 8

Allow the muffins to cool before serving. Enjoy!