Classic Lunchbox Thermomix Zucchini Slice

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The Thermomix Zucchini slice is one of my favourite “go to” recipes. It’s packed with healthy zucchini plus the bacon & cheese makes it irresistible. 

Close up view of individual zucchini slice on white plate and background

Whenever I’m looking for a quick, healthy meal to serve I inevitably fall back on this dish.

The recipe ticks all my boxes, it’s delicious, quick to make and everyone always LOVES it! The best part is it includes hidden vegetables, plus the leftovers make a great lunchbox idea. There is always a fight over who gets to take the leftovers to lunch or school.

2 pieces of Zucchini slice on a white plate

Zucchini Slice Tip

  1. This recipe freezes well so if you’re one of these super organised mums you could make and freeze the recipe ahead of time. Cut the slice into serving sizes before freezing. The individual portions can be used for school lunches, or single serve dinners on busy nights.

    Unfortunately, I have never been that organised, so my tribe fights it out for the measly leftovers.

  2. Note I’ve made the Thermomix zucchini slice in a slice tray and a mini loaf tin. If you do use a loaf tin make sure you line it with baking paper so it doesn’t stick.  You could also make these in large muffin trays with cupcake wrappers. The cooking times will alter depending on what tray you use.

Serving Suggestion

The zucchini slice makes a “figure friendly” main meal when served with a large, fresh salad.

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Close up view of individual zucchini slice on white plate and background

Classic Thermomix Zucchini Slice Recipe

Julie Carlyle
This has been one of my most popular recipes because it's simple and delicious! 
5 from 13 votes
Prep Time 10 mins
Cook Time 45 mins
Total Time 55 mins
Course Main Course
Cuisine Australian
Servings 12 Slices
Calories 274 kcal


  • 550 gm zucchini
  • 220 gm onion
  • 250 gm bacon
  • 200 gm cheese (block)
  • 1 cup SR flour
  • 1/4 cup oil
  • 5 eggs


  • Preheat the oven to 180 degrees celsius and line a baking tray with baking paper.
  • Cut the cheese into large cubes and add it to the TM bowl. Grate 2 sec/speed 7.
  • Remove the cheese from the TM bowl and reserve it for later in a large bowl.
  • 1/4 the onion and add it to the TM bowl. Blitz 3sec/speed 7.
  • Remove the onion from the TM bowl and reserve it into a small bowl.
  • 1/4 the zucchini's and add it to the TM bowl. Blitz 3sec/speed 5.
  • Remove the zucchini from the TM bowl and add it to the bowl of onions.
  • Squeeze the excess liquid from the onion and zucchini and combine it with the cheese in the larger bowl.
  • Add the bacon to the TM bowl. Blitz 3sec/speed 5.
  • Remove the bacon and add it to the reserved onion, cheese and zucchini mixture.
  • Crack the eggs into the zucchini mixture, add the flour and oil. Stir by hand until just combined.
  • Pour the mixture into the prepared tray and bake for 40- 45 minutes or until the slice is golden and feels cooked through when pressed in the centre.
  • The slice is delicious served hot or cold. 


The zucchini slice makes a great lunch idea and can be frozen in serving portions.
[clickToTweet tweet="'Perfect Make-ahead lunch idea! Cheesy Zucchini Slice'" quote="'Perfect Make-ahead lunch idea! Cheesy Zucchini Slice'"]


Calories: 274kcalCarbohydrates: 11gProtein: 10gFat: 20gSaturated Fat: 7gCholesterol: 99mgSodium: 272mgPotassium: 240mgFiber: 1gSugar: 2gVitamin A: 365IUVitamin C: 9.6mgCalcium: 145mgIron: 1.2mg
Tried this recipe?Let us know how it was!

More School Lunchbox Idea

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Landscape image of zucchini slice in the foreground and a large tray of slice in the background

Enjoy the recipe and have a lovely day 🙂

36 thoughts on “Classic Lunchbox Thermomix Zucchini Slice”

  1. Annette Willet says:

    I made muffins as suggested and they were so delicious thanks Julie x

    1. Julie Carlyle says:

      I’m so pleased you enjoyed the recipe 🙂
      Happy Cooking

  2. Mel says:

    Why do you only blitz 1/4 of the onions/zucchini? Do you do these steps 4 times?

    1. Julie Carlyle says:

      Hi Mel,
      Perhaps I haven’t written the instruction clearly enough. I mean for you to cut the onion into quarters before you add it to the TM bowl. The same is true for the zucchini, cut it into quarters, place in the bowl and then blitz.
      I hope that helps
      Happy cooking

  3. Flip says:

    5 stars
    Didn’t change one thing- all my fussy eaters ate their whole serve.
    Told them it was quiche at the start then once they had finished it I told them it was zucchini

  4. Emma Ryan says:

    5 stars
    This was delicious. I didn’t have 550 grams of zucchini so I had zuchinni brocolli, carrot and corn make up the 550g. The key really is getting rid of the moisture. I added some vegetable stock and the kids couldn’t get enough

    1. Julie Carlyle says:

      Hi Emma
      I absolutely agree, the key is getting rid of any excess moisture. Love the stock paste idea too! Yum.
      Thanks for coming back and commenting.

  5. Frieda says:

    Stupid question – what’s a TM bowl?

    1. Julie Carlyle says:

      Hi Frieda
      This isn’t a silly question TM bowl means Thermomix bowl.
      Happy cooking

  6. Jennifer Simao says:

    Could you use almond flour to make it Keto?

    1. Julie Carlyle says:

      Hi Jennifer
      I haven’t
      Used almond flour in this recipe so I really don’t know what effect it would have. Please let me know if you make the swap successfully.

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