Zucchini Bars with Cake Mix

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Make zucchini bars with cake mix to use up your abundance of garden zucchini. The spice cake mix matches perfectly with the cream cheese frosting.

closeup of 12 frosted zucchini bars with walnuts and caramel

I love summertime gardens. Granted, I’m not the best at it, but thankfully my mom and dad are and they share the produce with us.

One veggie that we always have an overabundance of is zucchini. If you have a garden, I know you understand.  We try to be smart and eat the zucchini grilled or sautรฉed, but what’s the fun of having zucchini plants if you can’t make some zucchini bread, s’more zucchini muffins and even zucchini bars with cake mix!

Ingredients Needed

The zucchini bars here are super easy.  They start with a box cake mix.  I can’t get enough of using cake mixes as a starter for recipes, as in our cake mix pancakes and cake mix cookies.

Here’s what you’ll need:

ingredients for zucchini bars with cake mix on a table
  • Use any flavor cake mix you’d like, but spice cake pairs really well in the easy zucchini cake bars.
  • Skip the ingredients on the back of the box, and add ¼ cup butter, an egg and 1 cup of shredded zucchini to the cake mix.
  • To keep this recipe quick, I use store bought cream cheese frosting, but you can use our cream cheese buttercream recipe if you prefer.
  • Top the zucchini cake bars with walnuts and a drizzle of caramel sauce.

How to Make Zucchini Bars with Cake Mix in 4 Steps

  • Prepare. Preheat the oven to 350ยบF. Spray a 8×8″ square baking pan with cooking spray. Line with parchment paper for easy removal if you’d like.
  • Make the batter. In a medium size bowl, use an electric mixer to mix the dry cake mix, egg, melted butter and zucchini until well combined. The batter will be very thick. 
cake batter in a bowl with two mixers
  1. Bake. Press the mixture into the prepared pan and bake for 25 minutes. A toothpick inserted in the center should come out clean.
  2. Frost. Once the bars are cool, frost the bars with cream cheese frosting. Then drizzle with caramel and sprinkle with walnuts
overhead view of unfrosted zucchini bars with cake mix
spreading cream cheese frosting on zucchini bars

Recipe Variations

  • Add a dash of ground cinnamon, nutmeg or vanilla extract to the cake batter for more flavor.
  • Don’t want so much frosting? Dust the top with powdered sugar.
  • Use a chocolate cake mix and add mini chocolate chips for a touch of chocolate zucchini cake.
overhead view of 12 frosted zucchini bars with walnuts and caramel
overhead view of 12 frosted zucchini bars with walnuts and caramel

Zucchini Bars with Cake Mix

5 from 1 vote
Make zucchini bars with cake mix to use up your abundance of garden zucchini. The spice cake mix matches perfectly with the cream cheese frosting.
Servings 12
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes

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Ingredients
 

  • 1 box spice cake mix 15.25 ounces
  • 1 large egg
  • 1/4 cup salted butter melted, 2 ounces
  • 1 cup shredded zucchini 142 grams
  • 12 ounces cream cheese frosting

Optional Toppings:

  • 3 tablespoons caramel sauce
  • 1/4 cup chopped walnuts

Instructions
 

  • Preheat the oven to 350ยบF. Spray a 8×8" square baking pan with cooking spray. Line with parchment paper for easy removal if you'd like.
  • In a medium size bowl, use a hand mixer to mix the dry cake mix, egg, melted butter and zucchini until well combined. The batter will be very thick. 1 box spice cake mix, 1 large egg, ¼ cup salted butter, 1 cup shredded zucchini
  • Press the mixture into the prepared pan and bake for 25 minutes.
  • Once the bars are cool, frost the bars with cream cheese frosting. Then drizzle with caramel and sprinkle with walnuts. 12 ounces cream cheese frosting, 3 tablespoons caramel sauce, ¼ cup chopped walnuts

Notes

  • Use any flavor cake mix you’d like.
  • I used a box grater to grate the zucchini. A food processor works too.
  • We like these bars best when the are cold, so we store them in the fridge. They do not have to be stored in the fridge, but should be stored in an airtight container.
  • Refer to the article above for more tips and tricks.
    The calories shown are based on the bars being cut into 12 pieces, with 1 serving being 1 bar. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information. **

Nutrition

Calories: 374kcal | Carbohydrates: 55g | Protein: 3g | Fat: 17g | Saturated Fat: 5g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 6g | Trans Fat: 0.2g | Cholesterol: 26mg | Sodium: 391mg | Potassium: 205mg | Fiber: 1g | Sugar: 41g | Vitamin A: 168IU | Vitamin C: 2mg | Calcium: 51mg | Iron: 2mg
Course Dessert
Cuisine American
Calories 374
Keyword cake mix recipe, easy dessert recipe, zucchini recipes
About JulieJulie Clark

About Julie Clark

I'm Julie Clark, CEO and recipe developer of Tastes of Lizzy T. With my B.A. in Education and over 30 years of cooking and baking, I want to teach YOU the best of our family recipes.

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5 from 1 vote (1 rating without comment)
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Cindy
9 years ago

I live in Louisiana and can’t find caramel cake by Duncan Hines. Can I use another flavor? Maybe Spice cake mix?

Sharon
10 years ago

These were outstanding! I made them for company dessert last night to great reviews. Best part is the 8 x 8 pan so there aren’t tons of leftovers. Thanks for sharing!