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chicken with mozzarella cheese and pepperoni in casserole dish
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4.68 from 28 votes

Easy Keto Pizza Chicken Bake

This low carb Easy Keto Pizza Chicken Bake recipe is an easy oven meal that your whole family will love! Seasoned chicken breasts smothered in tomato sauce,  melted mozzarella cheese, and pepperoni slices! Pizza night just got a whole lot more interesting.
Cook Time25 mins
Resting Time5 mins
Total Time30 mins
Course: Dinner
Cuisine: American
Servings: 12 people
Calories: 248kcal
Author: Kasey Trenum
Cost: $12


  • 2 lbs. chicken breasts (approx 4 chicken breasts cut into bite-sized cubes)
  • 3 TB butter
  • 1 TB olive oil
  • 1/2 tsp basil
  • 2 tsp garlic powder
  • 1 tsp onion powder
  • 1/4 tsp Italian seasoning
  • 1/2 tsp salt
  • 1/2 tsp pepper
  • 1/4 tsp crushed red pepper
  • 20 oz low carb spaghetti sauce (about ¾ of a 24 oz jar)
  • 2 ½ cups mozzarella cheese
  • 1/4 cup Parmesan cheese
  • 20-24 small pepperoni
  • ¼ large green pepper
  • ¼ medium onion
  • 2 TB mushrooms sliced
  • 1 tsp parsley


  • Preheat oven to 400° F.
  • Grease a 9 X 13 casserole dish.
  • Cut chicken into bite-sized pieces and place them in a bowl. Add the spices and mix well to coat the chicken.
  • Add 3 TB butter and 1 TB olive oil a large skillet over medium-high heat. (I used a 12-inch skillet.)
  • Once the skillet is hot, add the chicken in a single layer and brown both sides nicely. (The chicken will turn easily once it has fully browned.)
  • Using a slotted spoon, scoop out the chicken spreading it evenly onto the bottom of your greased casserole dish.
  • Top with 20 oz spaghetti sauce (approx ¾ of a 24 oz jar) and spread it out evenly.
  • Top with 2 ½ cups of mozzarella cheese and ¼ cup Parmesan cheese.
  • Add pepperoni, green peppers, mushrooms, and onions to the top.
  • Bake for 15 minutes then move to the top shelf of the oven and broil for 2 minutes or until the mozzarella cheese begins to bubble and turn brown.
  • Let sit for 5 - 10 minutes before serving. The spaghetti sauce will be a bit thin when you first take it out of the oven but will thicken up if you let it sit for a few minutes.



Low Carb Marinara Sauce Options without any added sugar:
  • Rao’s Homemade Marinara Sauce – 4g net carbs per ½ cup
  • Rao’s Homemade Tomato Basil Sauce – 3g net carbs per ½ cup
  • Lucini Italia Organic Tuscan Marinara Sauce – 3g net carbs per ½ cup
  • Lucini Italia Organic Rustic Tomato Basil – 3g net carbs per ½ cup
  • Mezzetta Napa Valley Homemade Sauce Marinara – 6g net carbs per ½ cup
Here are some other delicious low carb keto pizza toppings you can add to your pizza chicken bake:
  • caramelized onions
  • bacon
  • spicy sausage
  • ham
  • hot sauce
  • spinach
  • tomatoes
  • anchovies
  • broccoli
  • ricotta cheese
The pizza bake possibilities are endless! If you have family members who love a topping like mushrooms and some that hate it, do half mushrooms and half another topping!

Can you make this chicken pizza bake in advance?

Yes! You will need to sear your chicken first. When your chicken is ready, layer your marinara sauce, cheese, and toppings as the recipe states. Then you can hold off on baking until later that day or the next. Just place a piece of tinfoil over the top and keep cold in the refrigerator. Then bake for about 20-25 minutes or until warmed through.


Calories: 248kcal | Carbohydrates: 3g | Protein: 23g | Fat: 16g | Saturated Fat: 6g | Cholesterol: 79mg | Sodium: 481mg | Potassium: 330mg | Fiber: 1g | Sugar: 1g | Vitamin A: 315IU | Vitamin C: 4mg | Calcium: 147mg | Iron: 1mg