Keto Pizza Casserole Recipe
This Keto Pizza Casserole Recipe is a delightful twist on your favorite pizza, offering rich flavors without the carbs. Perfect for busy weeknights or casual gatherings, this dish satisfies cravings while keeping you on track with your keto lifestyle. Enjoy the convenience of a crustless pizza that’s both delicious and easy to prepare!
Why You’ll Love This Recipe
- Low Carb Delight: This casserole packs all the flavor of a traditional pizza without the carbs, making it an ideal choice for keto enthusiasts.
- Quick and Easy: With just 10 minutes of prep time, you can have a hearty meal ready in under 30 minutes.
- Customizable Toppings: Feel free to personalize your casserole with different meats and veggies based on your preferences!
- Gluten-Free Option: This recipe is gluten-free, making it suitable for those with dietary restrictions.
- Perfect for Leftovers: Enjoy this dish as leftovers; it reheats well and tastes just as good the next day.

Tools and Preparation
To make your Keto Pizza Casserole a success, gather your tools. Having the right equipment simplifies the cooking process and enhances your experience in the kitchen.
Essential Tools and Equipment
- Skillet
- Medium bowl
- Casserole dish or ramekins
- Slotted spoon
Importance of Each Tool
- Skillet: Essential for cooking the sausage evenly, ensuring full flavor in every bite.
- Medium bowl: Perfect for mixing ingredients without making a mess, keeping your workspace organized.
- Casserole dish or ramekins: Ideal for portion control and presentation, allowing you to serve individual servings if desired.
Ingredients
This Easy Pizza Casserole has all the flavor of your favorite take-out with almost none of the carbs. Crustless pizza is low carb, keto-friendly, and gluten-free. And it really satisfies those cravings!
For the Base
- 1 cup packed shredded zucchini
- 1/4 tsp salt
- 1/3 lb bulk Italian sausage (hot or mild)
For the Sauce and Toppings
- 1/4 cup marinara sauce (choose a low carb one like Rao’s)
- 1/2 cup shredded mozzarella (about 2 ounces)
- 1/2 ounce sliced pepperoni
- 1/8 medium green pepper, thinly sliced
- 2 small mushrooms, thinly sliced
How to Make Keto Pizza Casserole Recipe
Step 1: Prepare the Zucchini
Sprinkle the zucchini with salt and let drain for 30 minutes. After draining, squeeze out any excess moisture before placing it in a medium bowl.
Step 2: Cook the Sausage
In a skillet over medium heat, cook the sausage until it’s thoroughly cooked through. Break up any clumps using the back of a wooden spoon; this should take about 8 minutes. Use a slotted spoon to transfer the sausage to the bowl with zucchini.
Step 3: Combine Ingredients
Stir together the cooked sausage and zucchini mixture. Then spread this mixture into a small casserole dish or divide it among two 8-ounce ramekins.
Step 4: Add Sauce and Toppings
Spoon marinara sauce over the sausage mixture. Layer on cheese and toppings such as pepperoni, green pepper, and mushrooms. Remember to save some cheese to sprinkle over everything so that toppings stay in place.
Step 5: Bake or Air Fry
Air fry at 350ºF for about 8 to 12 minutes or bake in a preheated oven at 375ºF for approximately 10 to 15 minutes until everything is bubbly and golden brown.
Enjoy your delicious Keto Pizza Casserole!
How to Serve Keto Pizza Casserole Recipe
Keto Pizza Casserole is a versatile dish that can be served in various ways to enhance your dining experience. Whether you’re enjoying it for lunch, dinner, or as a party snack, these serving suggestions will elevate the meal.
Casual Dinner
- Serve with a side salad for a refreshing balance.
- Pair with garlic butter zucchini noodles for an extra veggie boost.
Family Style
- Place the casserole in the center of the table for everyone to share.
- Offer additional toppings like fresh basil or crushed red pepper for personalization.
Game Day Snack
- Cut into bite-sized pieces and serve with toothpicks.
- Add a side of low-carb dipping sauce, like ranch or marinara, for fun.
Lunch Meal Prep
- Portion into individual containers for easy grab-and-go meals.
- Reheat in the microwave for a quick and satisfying lunch.
How to Perfect Keto Pizza Casserole Recipe
To make sure your Keto Pizza Casserole turns out perfectly every time, follow these helpful tips. Simple adjustments can lead to a more delicious dish!
- Use fresh zucchini: Freshly shredded zucchini retains moisture better and enhances flavor.
- Squeeze out excess moisture: Removing excess water from the zucchini helps keep the casserole from becoming soggy.
- Experiment with toppings: Try different cheeses or meats like spicy sausage or olives to customize flavors.
- Adjust cooking time: Keep an eye on your casserole towards the end of cooking to prevent over-browning.
- Let it cool slightly: Allowing the casserole to rest before serving helps it set up nicely.
Best Side Dishes for Keto Pizza Casserole Recipe
Pairing sides with your Keto Pizza Casserole can create a well-rounded meal. Here are some fantastic options that complement the dish beautifully.
- Cauliflower Rice – A low-carb alternative that adds texture and absorbs flavors well.
- Garlic Green Beans – Sautéed green beans with garlic provide a crunchy contrast.
- Zucchini Chips – Lightly baked zucchini chips offer a crispy side that’s still keto-friendly.
- Caprese Salad – Fresh mozzarella, tomatoes, and basil make a refreshing companion to the hearty casserole.
- Spinach Salad – Tossed with olive oil and vinegar, this salad adds brightness and nutrients.
- Roasted Brussels Sprouts – Crispy on the outside and tender inside, these are perfect for adding some green to your plate.
Common Mistakes to Avoid
When making your Keto Pizza Casserole, it’s important to avoid common pitfalls that can affect the taste and texture of this delicious dish. Here are some mistakes to watch out for:
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Underestimating zucchini moisture: Zucchini contains a lot of water. If you don’t drain it properly, your casserole can become soggy. Always salt and squeeze out excess moisture before mixing.
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Choosing high-carb sauces: Not all marinara sauces are created equal. Some have high sugar content, which can ruin the keto aspect. Opt for low-carb sauces like Rao’s for the best results.
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Overcooking the sausage: Cooking the sausage too long can make it tough and dry. Cook until it’s just browned and cooked through; it will continue to cook in the casserole.
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Skipping toppings: While cheese and pepperoni are classic, skipping on veggies can diminish flavor and nutrition. Feel free to add your favorite low-carb veggies for extra taste and texture.
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Not monitoring cooking time: Every oven or air fryer is different. Keep an eye on your casserole as it cooks to ensure it doesn’t overcook or burn.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Keto Pizza Casserole in an airtight container.
- It can last in the fridge for up to 3 days.
- Ensure it cools completely before sealing to avoid condensation.
Freezing Keto Pizza Casserole Recipe
- For longer storage, freeze in a freezer-safe container or portion into individual servings.
- It can be frozen for up to 2 months.
- Label containers with the date for easy tracking.
Reheating Keto Pizza Casserole Recipe
- Oven: Preheat to 350ºF and bake for about 10-15 minutes until heated through.
- Microwave: Heat on medium power for 1-2 minutes, checking frequently.
- Stovetop: Warm in a skillet over medium heat, stirring occasionally until hot.
Frequently Asked Questions
What is a Keto Pizza Casserole Recipe?
The Keto Pizza Casserole Recipe is a delicious take on pizza that eliminates carbs by using zucchini instead of a crust. It’s perfect for satisfying pizza cravings while staying keto-friendly.
Can I customize my Keto Pizza Casserole Recipe?
Absolutely! You can add different toppings like olives, onions, or even switch up the cheese varieties based on your preferences. The recipe is versatile!
How many carbs are in this Keto Pizza Casserole Recipe?
This Keto Pizza Casserole Recipe contains approximately 6.3 grams of carbs per serving, making it an excellent choice for those following a low-carb diet.
Can I make this casserole ahead of time?
Yes! You can prepare your Keto Pizza Casserole ahead of time and store it in the refrigerator or freezer until you’re ready to bake it.
Final Thoughts
This Keto Pizza Casserole Recipe offers all the comforting flavors you love from pizza without the guilt of high carbs. It’s quick, customizable, and perfect for any meal. Try adding your favorite toppings or adjusting the seasonings to suit your taste!

Keto Pizza Casserole Recipe
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: Serves approximately six people 1x
- Category: Main
- Method: Baking/Air Frying
- Cuisine: Italian
Description
Satisfy your pizza cravings without the carbs with this delightful Keto Pizza Casserole Recipe! Bursting with classic flavors, this easy and crustless pizza dish is perfect for busy weeknights or casual gatherings. With just 10 minutes of prep time, you can whip up a hearty meal in under 30 minutes that fits seamlessly into your keto lifestyle. Customize it with your favorite toppings while enjoying a gluten-free and low-carb meal that’s as delicious as it is convenient. This casserole reheats beautifully, making it an excellent option for leftovers too!
Ingredients
- 1 cup packed shredded zucchini
- 1/4 tsp salt
- 1/3 lb bulk Italian sausage (hot or mild)
- 1/4 cup low-carb marinara sauce
- 1/2 cup shredded mozzarella cheese
- 1/2 oz sliced pepperoni
- 1/8 medium green pepper, thinly sliced
- 2 small mushrooms, thinly sliced
Instructions
- Prepare the zucchini: Sprinkle with salt and let drain for 30 minutes; squeeze out excess moisture.
- Cook the sausage: In a skillet over medium heat, cook until browned and cooked through (about 8 minutes). Transfer to a bowl with zucchini.
- Combine ingredients: Mix the sausage and zucchini in a bowl, then spread into a casserole dish or divide into ramekins.
- Add sauce and toppings: Spoon marinara over the mixture, layer on cheese, pepperoni, green pepper, and mushrooms. Reserve some cheese to top everything.
- Bake: Air fry at 350ºF for 8–12 minutes or bake at 375ºF for 10–15 minutes until bubbly and golden.
Nutrition
- Serving Size: 1/6 of casserole (approximately 150g)
- Calories: 290
- Sugar: 2g
- Sodium: 720mg
- Fat: 21g
- Saturated Fat: 9g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 2g
- Protein: 18g
- Cholesterol: 60mg