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Moist zucchini oatmeal muffins with golden tops, chocolate chips, and walnut pieces on a plate

Zucchini Oatmeal Muffins

Tender, domed, and packed with texture. The trick? Salting the zucchini and toasting the oats. These muffins are breakfast you actually crave – no gummy centers, just that specific oat smell and golden tops.
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Course Breakfast, Brunch
Cuisine American
Servings 12
Calories 210 kcal

Equipment

  • Box grater
  • Sheet Pan
  • Muffin Tin (12-cup)
  • Mixing Bowls (small and medium)
  • Whisk
  • Rubber Spatula
  • Cooling rack

Ingredients
  

Zucchini Prep

  • 1 1/2 cups grated zucchini (from 1 medium zucchini)
  • 1/2 teaspoon salt (for zucchini)

Dry Ingredients

  • 1 cup old-fashioned oats (toasted)
  • 1 1/2 cups all-purpose flour (scoop and level)
  • 1 teaspoon ground cinnamon
  • 1/2 teaspoon ground nutmeg
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt

Wet Ingredients

  • 1 large egg (room temperature if possible)
  • 1/3 cup maple syrup
  • 1/2 cup Greek yogurt (full-fat or 2%)
  • 1/4 cup mild olive oil (not extra virgin)
  • 1 teaspoon vanilla extract

Mix-Ins

  • 1/2 cup dark chocolate chips (or walnuts, raisins, etc.)

Instructions
 

  • Preheat oven to 350°F. Position rack in center. Line or grease a 12-cup muffin tin.
  • Grate and salt the zucchini: Grate zucchini into a colander. Toss with ½ teaspoon salt and let sit for 10 minutes.
  • Toast the oats: Spread oats on a sheet pan. Bake for 5 minutes, stirring halfway, until fragrant and barely golden. Let cool.
  • Whisk dry ingredients: In a medium bowl, whisk together flour, toasted oats, cinnamon, nutmeg, baking soda, baking powder, and remaining ¼ teaspoon salt.
  • Mix wet ingredients: In a small bowl, whisk egg, maple syrup, yogurt, olive oil, and vanilla until smooth.
  • Squeeze zucchini: Grab handfuls of salted zucchini and squeeze firmly over the sink until as dry as possible. Use a clean dish towel or paper towels.
  • Combine: Pour wet ingredients into dry. Fold gently with spatula until just combined – a few streaks of flour are fine. Fold in squeezed zucchini and mix-ins. Do not overmix.
  • Fill muffin cups: Divide batter evenly among 12 cups, filling nearly full. Use a cookie scoop for even portions.
  • Bake: Bake for 18–20 minutes, rotating halfway. A toothpick inserted into center should come out clean or with a few moist crumbs. Tops should be golden and domed.
  • Cool: Let rest in pan for 5 minutes, then transfer to a wire rack to cool completely. Wait at least 15 minutes before serving for best texture.

Notes

The zucchini squeeze is non-negotiable – it prevents soggy, flat muffins. Measure flour by spooning and leveling to avoid dry results. Overmixing leads to tough muffins; stop folding while a few streaks of flour remain. For best texture, let muffins cool on a rack. Store in an airtight container at room temperature for up to 3 days, in the fridge for 5 days, or freeze individually for up to 3 months. Reheat in a toaster oven at 300°F for 5 minutes.
Keyword easy muffin recipe, healthy breakfast, zucchini oatmeal muffins