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Healthy Zucchini Slice

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This healthy zucchini slice is perfect for meal prep - quick and easy to whip up and absolutely delicious!  Enjoy as is or throw in some extra veggies for something different!  A great vegetarian meal for anytime of the day. 

pieces of zucchini slice on a plate.

When it comes to crowd pleasers, the humble zucchini slice has stood the test of time.  A quintessential "Aussie" cuisine, you can generally find the slice packed in school lunch boxes, or served at parties alongside cheerios (not cereal - cocktail frankfurts) and fairy bread (white sliced bread covered in butter then sprinkles).

Kids love it.  Adults love it.  People who swear they'd never touch zucchini with a ten foot pole love it.  And if you're yet to experience the wonder that is THE zucchini slice, you'll love it too.

As with most things, I like to put a healthy spin on beloved recipes where I can.  I've subbed in a few healthier alternatives and the result is a perfectly balanced zucchini slice that makes no sacrifice in the taste department.

Zucchini slice is VERSATILE.  Enjoy it as is for a quick on-the-go breakfast, or pop it alongside a side salad for lunch and dinner.  Or take a plate of it to your next gathering.  Believe me - there's no occasion where the zucchini slice doesn't shine.

6 zucchinis laying on a white marble background.

HEALTHY ZUCCHINI SLICE INGREDIENTS LIST

One of the things I love about Zucchini Slice is that it's made of everyday ingredients I almost always have on hand.  Here's what you'll need (full measurements below)...

  • Zucchini
  • Onion
  • Olive Oil
  • Wholemeal Flour - This slice works well with plain white flour (a.k.a. all purpose) as well as gluten free flour, so feel free to substitute with what you prefer.
  • Eggs
  • Cheese - I usually use what we call "tasty " cheese for this recipe, which is essentially cheddar cheese.  I have made it quite a few times with lactose free cheese, which also worked well.
  • Baking Powder
  • Salt + Pepper

Optional Add-Ins

Traditional zucchini slice calls for bacon.  If this sounds good to you, try my Zucchini and Bacon Slice.

pieces of zucchini slice on a plate.

HOW TO REMOVE LIQUID FROM GRATED ZUCCHINI

One of life's great disappointments is making baked goods with zucchini that is insufficiently drained of liquid, and ends up coming out a soggy mess.  Don't let zucchini play you like that!  Follow these easy steps and you'll never have a soggy kitchen mishap again.

  1. Grate zucchini into a colander, sprinkle with salt and leave for 10 minutes.
  2. Put the grated zucchini in a clean dish cloth and wring out over the sink, OR wring with your hands, grabbing a handful of grated zucchini at a time and placing in a seperate bowl as you go.

Tip:  For this recipe you don't need to be militant in your removal of the zucchini liquid.  Just give it a wring and pop it in the ingredient bowl (as per step 3 in the recipe instructions).  A little moisture left is OK and won't effect the end result.

HOW TO MAKE VEGETARIAN ZUCCHINI SLICE - STEP BY STEP

step by step photos on how to make healthy zucchini slice.

Preheat oven to 180C / 360F and line square baking tray with baking paper.
Grate zucchini and drain using the method explained above (photo 1).
Whisk eggs in a large mixing bowl (photo 2).  Add flour and baking powder and mix until smooth.
Add grated zucchini, onion, cheese, olive oil, eggs, salt and pepper, and mix together until well combined (photo 3).
Pour mixture into tray (photo 4) and place in oven for 35-40 minutes or until fully cooked through and slightly browned on top.
Cut into 9 slices and serve on it's own or with some hummus on top!

Storing Zucchini Slice in the fridge and freezer

Slices placed in an airtight container in the fridge will keep for about 5 days.

Slices placed in an airtight container, or zip-locked bags in the freezer will keep for up to 3 months.  To defrost, simply place in the fridge overnight and allow to defrost completely.

How to reheat zucchini slice?

You can reheat the slice in the microwave or the oven, or just eat cold (my personal favourite).

healthy zucchini slice

MORE ZUCCHINI RECIPES FOR ZUCCHINI LOVERS

If you’ve tried this Healthy Zucchini Slice I’d love to hear how you enjoyed it! Pop a comment and a star rating below!

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📋 RECIPE

Healthy Zucchini Slice

Healthy Zucchini Slice

Yield: 9 serves
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes

A healthy zucchini slice that can be enjoyed as a light lunch, snack or breakfast on the go. 

Ingredients

  • 4 Zucchinis, grated (see note 1)
  • 1 cup Wholemeal Flour
  • 1 cup Cheese
  • 1 Brown Onion, finely diced
  • ¼ cup Olive Oil
  • 1 teaspoon Baking Powder
  • 5 Eggs
  • Salt + Pepper, to taste

Instructions

  1. Preheat oven to 180C / 360F and line baking tray (6x12inches / 15x30cm) with baking paper
  2. Whisk eggs in a large mixing bowl.  Add flour and baking powder and mix until smooth.
  3. Add grated zucchini, onion, cheese, olive oil, eggs, salt and pepper, and mix together until well combined.
  4. Pour mixture into tray and place in oven for 35-40 minutes or until fully cooked through and slightly browned on top.
  5. Cut into 9 slices and serve on it's own or with some hummus on top! 

Notes

  1. PREPARING ZUCCHINI - Be sure to wring the grated zucchini out before mixing in with the ingredients to remove excess moisture. 
  2. STORING - Store in an airtight container in the fridge for up to 5 days, or in the freezer for up to 3 months.  To defrost, place in fridge overnight.   
  3. REHEAT - Reheat in microwave or oven, or eat cold (my favourite).
  4. UPDATES - First Published January 2, 2018.  Last Updated December 10, 2018.  No changes to recipe, simply updated photos and tips.  
  5. NUTRITION - Nutrition information derived from nutrition calculator and is for one serve.  

Nutrition Information:
Yield: 9
Amount Per Serving: Calories: 198Saturated Fat: 4gCarbohydrates: 12gFiber: 2gSugar: 2gProtein: 8g
© Cassie
Cuisine: Western / Category: Dinner

★★ HAVE YOU MADE THIS RECIPE? PLEASE GIVE IT A STAR RATING BELOW!

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Reader Interactions

Comments

  1. Jan says

    Hi Cassie
    Can this be cooked in an Air Fryer Oven?

    • Cassie says

      It can. I'd stick to 180 for the temperature but it will probably be finished a bit faster then the oven 🙂

  2. Christine says

    I wonder if I could leave out the cheese or if that would have a negative effect on the consistency..

    • Cassie says

      Hey Christine - it's not something I can confidently advise on having never tried it myself. Could always give it a try - I don't think it would impact the consistency so much as the taste. The cheese really gives it a good flavour, and I find dishes like this without cheese are too eggy for my taste.

  3. Kellie says

    Easy to make I did put in some grated carrot. Everyone loved eating

    • Cassie says

      Love that addition Kellie!

  4. Julie Couzner says

    I have made this & many other zucchini slices & I have cooked it twice as long as the recommended time, but its always stodgy. What am I doing wrong?

    • Cassie says

      Hey Julie,

      I'm disappointed to hear you've been having so much trouble with zucchini slice!

      My number one tip would be to make sure you are squeezing as much liquid out of your zucchinis as possible before adding them to your mixture. I grate mine directly into my colander, sprinkle with salt and leave it for 10 minutes, but even here you could leave in for 30 minutes to try and draw out as much liquid as possible. Then you can wring the zucchini with your hands (just grab a handful at a time and squeeze - this is a good workout!) or put it all in a clean dish cloth and wring it out over the sink.

      When you are mixing everything together the mixture should be quite thick, which should give you an indication all is ok before baking. If it's too runny you may want to add a little more flour.

      I hope this helps!

  5. Christina says

    Hi! This sounds delicious! I grew some mutantly large zucchinis so if you had to guess, how many cups of zucchini are needed? Thanks!

    • Cassie says

      Mutantly large zucchinis - love it! I'd say it would be 3 cups 🙂 if you find the mixture is too wet after that you can always add a little more flour to the mix to even it out. Enjoy!

      • Christina says

        Thanks! I tried this last week and it was Yummy!
        (Does a 5 lb 5 oz zucchini count as a mutant?)

        • Cassie says

          Definitely mutant! That's an impressive zucchini!

  6. Shanny Talanoa says

    Absolutely delicious! My family's favourite zucchini slice and so easy to make!

    • Cassie says

      So thrilled to hear that Shanny!! 🙂

  7. Mica says

    My boys love this - one of the easiest way to sneak some veggies into them, haha! 🙂

    I can't imagine being that cold, but what an incredible experience that would have been in Canada! So different from the heat here in Australia though, haha!

    Hope you are having a good week so far, and a lovely start to 2018!

    Away From The Blue Blog

    • Cassie says

      Thanks lovely! It was a really different experience for sure! I can now never complain about a Brisbane winter ever again!

  8. Johanna @ Summers Wildling says

    Zucchini slice is my absolute favourite go-to recipe. I generally end up chopping up any left-over veggies I have for the week and throwing them in too. I haven't tried using wholemeal flour before, so i'll give that a try for next time! Great tips.

    • Cassie says

      I think it's a real aussie thing haha! But the more veggies the better!

  9. Aria says

    wow!!! so yummy!! I love all of your recipes!! Ooh, such a simple recipes, alternative ideas with different ingredients,Thanks for the recipe Cassie .
    https://ozfoodhunter.com.au/

    • Cassie says

      Thanks Aria 🙂 Glad you liked it!

  10. Karly says

    So simple and so delicious! I've never thought to try something like this, but definitely need to. Thanks for sharing!

    • Cassie says

      Thanks Karly 🙂

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