Keto Italian Pizza Zucchini Bake

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Keto Italian Pizza Zucchini Bake is a humble supper, prepared in less than half an hour, and full of low carb favorites.
Layers of zucchini and onions with grilled chicken are topped with marinara, cheese, and pepperoni!

low carb italian pizza zucchini bake

Keto Italian Pizza Zucchini Bake is one of those you have leftovers in your fridge plus you need a super easy meal that can be made in one skillet. If you have grilled chicken, zucchini, onions, cheese, and some other items you have supper in a matter of minutes!

Here’s how to make it…

onions in a skillet

First, in a cast-iron skillet like this one, add a couple of teaspoons of olive oil and some diced onions. Let the onions get soft over medium heat if they happen to get some color that’s okay. 

Zucchini and onions in a skillet

Once your onions are slightly soft, go ahead and dump in some cut up zucchini. Let them get all cozy and comfy with the onions. Sprinkle a little salt and pepper in with them. At this point, you can walk away for a minute or so. I like to add color to my veggies, the caramelization of the sugars creates a fun ride in flavor town, and you’ll definitely want to be on it!

low carb onions, and zucchini in a skillet

This is the lengthiest process – it should take about 8 minutes, and you’ll maybe stir the zucchini and onions a few times. While this is going on, you can chop up your leftover grilled chicken. Having Meal Prep Grilled Chicken on hand for recipes just like Keto Italian Pizza Zucchini Bake is so handy for busy weeknights!

Grilled Chicken on cutting board

You can’t see it very well, but whenever I cut anything, I use these plastic “shields” and it’s super handy to wash off. It’s especially handy when cutting/preparing raw meat of any kind. It’s flexible, so you can also lift it up and plop it into your skillet, pot, or baking dish. Dice up the leftover chicken breast.

Low carb chicken and vegetable skillet

Next, dump the diced up chicken and sprinkle with Italian seasoning. Stir this around and let the chicken warm through. 

Rao's Low Carb Spaghetti Sauce


Did y’all know Rao’s sauce is low carb?! It’s simple ingredients and by far the best store-bought sauce out there! You can order Rao’s sauce on Amazon, and purchase in the store. Occasionally it goes on sale, and when it does, be sure to stock up! I use this as a pizza sauce with naan bread and mozzarella cheese!

Rao's red sauce low carb

Then plop a good portion on top of everything. This is maybe a cup and a half? It’s half of the jar. You’ll want to stir this around and heat it up. In the end, we’ll place this whole skillet in the oven, under the broiler. So, having everything warm and happy before adding the cheese and pepperonis will help speed this process up. Remember, red sauce randomly bubbles up, and bubbles up largely! It can pop and go all over the place. Be careful!

zucchini and onions with low carb red sauce

italian pizza zucchini bake dinner recipe idea

Top the heated zucchini, onions, chicken, and red sauce with mozzarella cheese. I added some red pepper flakes because I like a little added heat in my Italian food. That’s why my Angry Lasagna is angry – it’s got lots of red pepper flakes, smokey cheese, and fire-roasted tomatoes. 

italian pizza zucchini bake low carb dinner idea

Now, top the whole skillet with pepperoni. You could top with any kind of pizza toppings you want! 

Need some Pizza Topping Ideas? Why not try these…

  • Pepperoni
  • Sausage
  • Bacon
  • Ham
  • Green Peppers
  • Onions
  • Olives
  • Pepperoncini

low carb italian pizza zucchini bake

Finally, plop this whole skillet under the broiler and let it get all brown and crispy. I have a very old stove and oven. So, the broiler is quite hot – I usually leave the door cracked and watch it super closely. It’s a super fun process to watch, quite magical! 

This recipe needs a scooper besides your fork! Try this Keto Flatbread!

low carb dinner idea in an east fork pottery bowl

Y’all, it’s so good! Cheesy and creamy, protein and veggie-filled, and low carb and keto-friendly. Don’t just limit this to zucchini, either. You could throw in all kinds of vegetables you need to use up. Squash, broccoli, asparagus, kale, collards, etc. Any and all of it would be delicious!

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low carb italian pizza zucchini bake

Keto Italian Pizza Zucchini Bake

5 from 10 reviews
  • Author: Sweetpea
  • Prep Time: 5
  • Cook Time: 15
  • Total Time: 20 minutes
  • Category: low carb
  • Method: stove top cooking
  • Cuisine: italian


Keto Italian Pizza Zucchini Bake is a humble supper, prepared in less than half an hour, and full of low carb favorites.
Layers of zucchini and onions with grilled chicken are topped with marinara, cheese, and pepperoni!


  • 2 teaspoons olive oil
  • 1 medium onion, chopped
  • 2 small zucchini, chopped (about a cup or so)
  • 1 cup diced grilled chicken breast
  • 1 teaspoon italian seasoning
  • 1 cup Rao’s marinara sauce
  • 1 cup mozzarella cheese
  • 12 pepperonis


  1. Over medium heat, in a cast-iron skillet, heat the olive oil and begin sauting the onions until just starting to soften. 
  2. Add zucchini and cook until a little color comes to the vegetables, and the zucchini cooks through. 
  3. Add diced grilled chicken and italian seasonings. Stir to combine and heat through.
  4. Pour Rao’s marinara sauce over top and stir to combine and heat through.
  5. Top with mozzarella cheese and pepperoni.
  6. Broil under your oven’s broiler until the cheese has melted and the pepperoni are crisp. 
  7. Serve to your people and enjoy!


You can sprinkle in some red pepper flakes, if you like a tinge of heat.

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  1. I was looking for some tasty Keto Recipes for my best friend and seem to have stumbled on a simple yet delish Keto recipe! Looking forward to passing this on. I know she will love it.

  2. This would be a hit in my house! Not because it’s Keto but because of all of the delicious ingredients in it! Love it!

    1. Suzy, it would be so fun for your people to create their own in little skillets – then top with any pizza toppings they want! Thanks for stopping by!

  3. A delicious meal and easy clean up is always a winning dish in our house! The perfect combination of flavors and bonus, my kids love it too.

  4. I can’t believe how easy and delicious this recipe is! Makes going keto a breeze!

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