Using ingredient container lemon yogurt room temperature

Lemon Zucchini Muffins

• 1 container lemon yogurt room temperature
• 1 egg
• 1 lemon
• 1 zucchini (shredded)
• 1/2 stick
• 325 gr all purpose flour
• 100 gr sugar
• 60 gr walnuts (chopped)
• 55 gr butter melted
• 7 gr baking soda