Say hello to our Keto Chicken Pizza Casserole! This delightful twist on a traditional favorite brings all the flavors you love in a pizza without the carb overload. It is a quick and easy dish that combines tender chunks of chicken, pepperoni, bell peppers, and more, all smothered in a blanket of gooey, melted mozzarella cheese. With just a few simple steps, you'll have a flavorful, low-carb meal on the table in no time.

Jump to:
- Preparation and cooking overview
- Chef's note
- 🍕 Ingredients for this keto chicken pizza casserole recipe
- Ingredient substitutions
- Additional ingredients
- Cooking tools required
- Tools substitute options
- How to make Keto Chicken Pizza Casserole: step-by-step guide
- Cooking methods
- Cooking instructions
- Cooking instructions
- What to serve with keto chicken pizza casserole?
- How to make it healthier
- Time-saving tips
- What can I prepare ahead of time?
- Storage and reheating instructions
- Storage tips
- Reheating best practices
- Recipe wrap-up and conclusion
- Frequently asked questions
- 📖 Recipe
Preparation and cooking overview
Get ready for an easy-to-follow pizza bliss! Season and sear bite-sized chicken pieces in a hot skillet. Next, add a medley of pepperoni, bell pepper, onion, and black olives. Finish by topping it all off with a generous layer of melty, low-moisture mozzarella cheese, and pop it in the oven until it's bubbly. You'll have a mouthwatering keto chicken pizza casserole with a total cooking time of just 40 minutes.
Chef's note
For a unique touch, go for keto-friendly options like sliced mushrooms, chopped tomatoes, or a dash of red pepper flakes to spice things up. Switch it up with kalamata olives and smooth alfredo sauce for a Greek-inspired keto pizza casserole. Add sausage, ham, or even a bit of prosciutto to create a meat lover's dream. Pick any toppings you love — we're fans of bacon, cheese, ham, and hot cherry peppers!
🍕 Ingredients for this keto chicken pizza casserole recipe
Ingredient substitutions
Feel free to use these ingredients as alternatives if you don't have the ones mentioned above.
Additional ingredients
These additional ingredients will complement the main ingredients and enhance the overall taste and texture of the casserole:
Cooking tools required
To make this keto pizza chicken casserole recipe, you will need the following tools:
Tools substitute options
How to make Keto Chicken Pizza Casserole: step-by-step guide
Cooking methods
Cooking instructions
- Cut chicken breast into 1'' cubes.
- Slice the bell peppers and white onion thinly. Dice the black olives.
- Shred the mozzarella cheese.
Cooking instructions
- Preheat the oven to 400°F (200°C).
- Heat the oil in a 10.5″ cast iron skillet over medium-high heat. Season the chicken with garlic salt and Italian seasoning. Sear the chicken for 3-4 minutes per side until browned and cooked through.
- Add in the remaining ingredients except for the cheese and cook for 2-3 minutes until the vegetables start to slightly soften. Top with cheese and transfer to the oven for 15 minutes until the cheese is bubbly.
Chef's pro tip
This casserole can turn out soggy. Be sure to drain the crushed tomatoes well before tossing them in the skillet. You can use a strainer or simply press the tomatoes against the can's sides to get rid of extra juice. Also, steer clear of watery ingredients like canned veggies or sauces that are high in moisture.
What to serve with keto chicken pizza casserole?
Enhance your chicken pizza casserole with these tasty sides:
How to make it healthier
Here are a couple of tweaks to make the keto pizza casserole recipe healthier:
Time-saving tips
What can I prepare ahead of time?

Storage and reheating instructions
Storage tips
After your casserole has cooled to room temperature, cover it with an airtight lid or wrap it tightly with plastic wrap. Then, place it in the refrigerator. It can be stored in the fridge for up to 3-4 days.
Note: Freezing the casserole is possible, but the texture and taste may change after thawing.
Reheating best practices
Recipe wrap-up and conclusion
This Keto Chicken Pizza Casserole is your answer to satisfying those pizza cravings without sacrificing your keto goals. Whether you're cooking for yourself, your family, or a gathering of friends, this casserole is a crowd-pleaser.
So, don your chef's hat and apron, whip up this delightful dish, and don't forget to share the pictures on social media. Let your friends and fellow food enthusiasts in on the delicious secret. Bon appétit, and here's to savoring every cheesy, keto-friendly bite!
Looking for more Keto Casserole Recipes? Check these out:
Frequently asked questions
📖 Recipe

Keto Pizza Casserole
Ingredients
- 3 tablespoons olive oil
- ½ tablespoon Italian seasoning
- ½ teaspoon garlic salt
- 1 lb chicken breast cut into 1″ cubes
- 4 oz pepperoni
- 1 bell pepper sliced
- ½ white onion thinly sliced
- ¼ cup sliced black olives
- 1 cup crushed tomatoes
- 2 cups shredded low-moisture mozzarella
Instructions
- Preheat the oven to 400° F.
- Heat the oil in a 10.5″ cast iron skillet over medium high heat. Season the chicken with the garlic salt and Italian seasoning. Sear the chicken for 3-4 minutes per side until browned and cooked through.
- Add in the remaining ingredients except for the cheese and cook 2-3 minutes until the vegetables start to slightly soften. Top with cheese and transfer to the oven for 15 minutes until the cheese is bubbly.
Wendy says
This was really good but lacked flavor. Next time I will swap the crushed tomatoes for pizza sauce and def add oregano.
Kimberly Sawickey says
Absolutely love this recipe so much having it celebrate May Day aka Happy Friday !!
KC says
This was delicious! I used what we had on hand: frozen veggies instead of fresh, rao's pizza sauce instead of crushed tomatoes, omitted the black olives for personal preference. Everything else was the same. It was SO good! I ate way more than I should have and am even more excited about eating the cold leftovers tomorrow. Thank you for the new dinner in our rotation! 🙂
Kristin says
Absolutely delicious! We used this as our Thanksgiving main dish, and it was a huge hit! Easy, fast, scrumptious...I couldn't have asked for more!
Juanita Yuhnke says
I made this recipe last night and my husband loved it! We only had leftovers for one more meal, but wish we had more! Easy and quick to prepare!
Ted says
Delicious! My wife and I love pizza but haven’t found a great keto version yet. This really hit the spot! I used homemade keto pizza sauce instead of the crushed tomatoes and it was great. This one will be part of our regular rotation
Marcelle says
Have been making this for about 4 years, but I do it in a 9" x 13" casserole and I double the Italian seasoning, add a bit more garlic salt, use Garlic, Basil & Oregano diced tomatoes instead of plain crushed tomatoes, skipped the black olives, and I doubled the pepperoni but cut half of them into quarters and mixed it into the casserole. Sprinkle the mozzarella on top and then add whole slices of pepperoni to the top of the cheese. Cook for at least 30 minutes. Not bland at all!!! One of hubby's favs and he isn't even keto!