Zucchini Banana Brownies

Zucchini, banana, and yes, leftover quinoa, make deep dark chocolate fudgy brownies that will entice even the pickiest eaters. Zucchini Banana Brownies are a treat everyone can feel good about.
Zucchini Banana Brownies sliced on parchment paper.
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Course Dessert
Cuisine American, Vegetarian
Prep Time 15 minutes
Cook Time 45 minutes
Resting Time 15 minutes
Total Time 1 hour
Servings 16 servings
Calories 125kcal
Author Liren Baker


  • 1/2 cup all-purpose flour
  • 1/4 cup cocoa powder
  • 1/3 cup brown sugar
  • 1/3 cup granulated sugar
  • 1/4 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 teaspoon instant espresso coffee optional but highly recommended
  • 3/4 cup cooked quinoa
  • 3/4 cup semi-sweet chocolate chips
  • 1 1/2 cups grated zucchini about 1 large zucchini
  • 1 cup mashed bananas about 1 large banana
  • 1 large egg
  • 1 teaspoon vanilla


  • Preheat oven to 350° Fahrenheit.
  • Prepare an 8×8″ baking pan by lightly spraying with baking spray or greasing with butter (I used coconut oil spray). Line with parchment paper.
  • In a medium bowl, whisk together flour, cocoa powder, brown and granulated sugars, baking powder, baking soda, salt and espresso powder (if using). Stir in quinoa and chocolate chips.
  • In a separate mixing bowl, mix the grated zucchini, mashed banana, egg and vanilla until well blended. Mix the zucchini-banana and egg mixture into the flour and quinoa mixture until blended.
  • Pour into prepared brownie pan and spread evenly.
  • Bake for about 45 minutes or until it begins to pull from the edges of the pan. Remove from oven, cool for at least 15 minutes in the pan, then transfer the brownies with the parchment paper onto a wire rack to cool completely (or at least until it is just lukewarm). Slice into 16 squares and serve.



Calories: 125kcal | Carbohydrates: 21g | Protein: 2g | Fat: 3g | Saturated Fat: 2g | Cholesterol: 10mg | Sodium: 97mg | Potassium: 167mg | Fiber: 1g | Sugar: 13g | Vitamin A: 50IU | Vitamin C: 2.9mg | Calcium: 18mg | Iron: 1.2mg
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