Preheat oven to 350℉.
Line a standard, 12-cavity muffin tin with paper liners.
In a large bowl, mix by hand the eggs, oil, lemon juice, lemon peel.
Add in the flour, sugar, baking powder, and baking soda and stir until well-combined.
Mix in the shredded zucchini.
Fold in the blueberries.
Divide the batter equally into the 12 paper liners.
Bake at 350℉. for 15-20 minutes or just until a cake tester comes out clean. Do not over-bake!
Immediately transfer the muffins from the muffin tin to a wire rack to cool. Do not let them cool in the muffin tin. They will bake longer!
Store the muffins covered at room temperature for 3-5 days.