Craving the rich, savory taste of pizza without the guilt of carbs? Look no further than this incredible Keto Ground Beef Pizza Casserole. Imagine all your favorite pizza toppings – seasoned ground beef, vibrant vegetables, a tangy low-carb marinara, and gooey melted cheese – layered into a hearty, satisfying casserole that’s completely crustless. It’s the ultimate low-carb comfort food, perfect for family dinners, meal prep, or whenever a pizza craving strikes. This dish delivers on flavor, convenience, and health, making it an instant favorite for anyone following a ketogenic or low-carb lifestyle.

Effortless Weeknight Dinner: The Ultimate Keto Pizza Casserole
In today’s fast-paced world, finding quick, healthy, and delicious dinner solutions is a constant quest. This Keto Pizza Casserole is the answer to that challenge. It’s not just faster than ordering takeout; it’s also significantly healthier, aligning perfectly with your low-carb goals. This dish is the epitome of an easy weeknight meal, allowing you to enjoy the beloved flavors of pizza without any of the traditional crust, which often comes with high carbs and gluten. Its simplicity means less time in the kitchen and more time enjoying a wholesome, homemade meal.
The beauty of this casserole lies in its versatility. You have the freedom to customize it with an array of your favorite pizza toppings, transforming it into a personalized culinary masterpiece. Whether you prefer a classic pepperoni and mushroom combination or a veggie-packed supreme version, this recipe adapts to your palate. The rich flavors come alive from the fresh, vibrant vegetables, generous amounts of melted cheese, and a zesty, low-carb marinara sauce that ties all the ingredients together beautifully. If you’re a fan of a little heat, a sprinkle of red pepper flakes can easily elevate the spice level to your liking.

Beyond its incredible taste, this crustless pizza casserole offers significant dietary advantages. By eliminating the crust entirely, it naturally becomes 100% gluten-free, nut-free, and grain-free, making it an excellent choice for those with sensitivities or specific dietary restrictions. It’s an ingenious way to indulge your pizza cravings while staying firmly on track with your healthy eating plan. This dish proves that eating healthy doesn’t mean sacrificing flavor or satisfaction; in fact, it often opens up new and exciting culinary possibilities.
Building the Best Keto Ground Beef Casserole
At the heart of this satisfying Keto Ground Beef Casserole is, as the name suggests, ground beef. This ingredient is a fantastic choice for its widespread availability, ease of cooking, and robust flavor profile that perfectly complements the savory notes of a pizza. It forms a hearty and flavorful base, soaking up the marinara sauce and mingling with the cheese and toppings to create a deeply comforting dish. When browned and seasoned correctly, ground beef contributes an irresistible depth that makes this casserole truly shine.

While ground beef is the go-to, this recipe is incredibly adaptable, allowing you to experiment with other meats to suit your preference. For those seeking an even bolder and spicier flavor, consider swapping out the ground beef for an equal amount of ground pork sausage. The rich, herby notes of sausage can add an exciting dimension to your pizza casserole. If you’re aiming for a leaner protein option, ground chicken or ground turkey are excellent alternatives. However, since chicken and turkey tend to have a milder flavor, I highly recommend increasing the amount of Italian spices and perhaps adding a pinch of garlic powder or onion powder to ensure your casserole remains packed with flavor.
This recipe also presents a perfect opportunity to utilize any leftover cooked ground beef you might have on hand. It’s a fantastic way to minimize food waste and speed up your meal preparation. If you frequently buy ground beef in bulk, cooking a large batch and setting some aside for future meals can be a game-changer. Beyond this delectable casserole, leftover ground beef can be transformed into a variety of other delicious keto-friendly meals, such as keto ground beef stroganoff, a creamy and comforting classic, or vibrant keto Korean beef rice bowls, offering a burst of umami flavor. These versatile options make batch cooking ground beef a smart strategy for any busy low-carb cook.
Customizing Your Crustless Keto Pizza Casserole
The beauty of this Keto Pizza Casserole extends to its endless customization possibilities. Whether you’re cooking for one or feeding a crowd, you can easily adapt the recipe to fit your needs and tastes. If you’re a fan of supreme pizzas and prefer a single-serving option, then Keto Supreme Pizza Bowls offer a similar flavor profile in a convenient individual portion. However, for a fantastic family-style meal, this casserole recipe is absolutely ideal, designed to be shared and enjoyed by everyone at the table.

When it comes to toppings, this casserole is already quite generous. Each serving contains approximately 6 grams of net carbs, so it’s wise to be mindful of additional vegetables, especially those with higher carb counts. However, there are plenty of low-carb options to enhance the flavor and texture. For an added kick, consider replacing half of the bell peppers with thinly sliced jalapeño peppers. Their vibrant heat will introduce an exciting contrast to the rich flavors. If you’re seeking a tangier note, swap out some of the Parmesan cheese for shredded provolone cheese. Provolone melts beautifully and offers a distinct savory-sweet profile that can elevate the entire dish. Other excellent low-carb additions include black olives, spinach (which wilts down significantly), artichoke hearts, or even a sprinkle of crumbled bacon for extra smoky goodness. Remember to layer your toppings evenly for consistent flavor in every bite.
And if your love affair with pizza runs deep, why not create a complete pizza-themed spread? Pair your low-carb pizza casserole with a side of low-carb cottage cheese pizza dip. This creamy, cheesy dip offers all the beloved flavors of pizza in a dippable format, perfect for enjoying with keto crackers or fresh veggie sticks. It’s an easy and delicious way to ensure your pizza cravings are fully satisfied, keeping your low-carb journey both flavorful and exciting.
What to Serve with Your Hearty Keto Casserole
This substantial Keto Ground Beef Pizza Casserole is designed to be a complete meal in itself, easily feeding your entire family – even picky eaters will love its familiar, comforting flavors! To start your meal on a fresh and nutritious note, consider pairing it with a vibrant and zesty salad. A keto cauliflower cranberry walnut salad offers a wonderful blend of textures and flavors, with its crisp cauliflower, tart cranberries, and crunchy walnuts, all tossed in a bright dressing. This combination provides a refreshing counterpoint to the rich casserole.

To truly capture the essence of a traditional pizza parlor experience, add some low-carb bread alternatives to the table. Fluffy jalapeno oopsie bread or savory garlic knots are perfect for scooping up any lingering sauce or simply enjoying alongside the casserole. These delicious sides mimic the breadsticks or garlic bread you’d typically find, but without the added carbs, ensuring your meal remains keto-friendly and satisfying. They add another layer of texture and flavor, making the meal feel even more special and complete.
For those who love to load up on extra veggies, there are several fantastic low-carb side dish options that complement this casserole beautifully. Consider serving stuffed peppers, filled with a savory mixture that can echo the flavors of your casserole, or a creamy, dreamy garlic cauliflower mash. The cauliflower mash provides a smooth, comforting side that’s surprisingly similar to mashed potatoes but without the carbs. These additional vegetable-based sides not only boost the nutritional value of your meal but also add variety and depth, ensuring everyone finds something they love.
Smart Storage and Meal Prep Tips for Your Casserole
One of the many advantages of this Keto Ground Beef Pizza Casserole is its incredible versatility for meal planning. It’s an ideal recipe to prepare ahead of time, transform into a convenient freezer meal, or incorporate into your weekly meal prep routine. Its ability to store well makes it a go-to for busy individuals and families looking to simplify their cooking and enjoy delicious, healthy meals throughout the week.

To make this casserole ahead of time, simply bake it according to the recipe instructions. Once it has cooled completely, cover the baking dish tightly with a lid or aluminum foil and store it in the refrigerator. It will stay fresh and delicious for up to three days, making it perfect for preparing on a Sunday and enjoying during the week. For individual meal prep, divide the baked and cooled casserole into single-serving containers. These portions can also be refrigerated for up to three days, offering a convenient grab-and-go low-carb lunch or dinner option.
If you wish to turn this into a freezer meal, which is a fantastic strategy for long-term meal planning, ensure the casserole is thoroughly cooled after baking. Then, transfer it to a freezer-safe container, either in its original baking dish (if freezer-safe and tightly sealed) or in individual portions. Proper sealing is crucial to prevent freezer burn. This Keto Pizza Casserole can be stored in the freezer for up to six months, offering a quick and easy solution for those evenings when you don’t have time to cook from scratch. When ready to enjoy, simply thaw it in the refrigerator overnight and then reheat it in the oven or microwave until piping hot. This efficient storage method ensures you always have a delicious, low-carb meal ready at a moment’s notice.
Keto Ground Beef Pizza Casserole Recipe
Here’s everything you need to know to create this delectable Keto Ground Beef Pizza Casserole. Below, you’ll find a detailed list of ingredients and step-by-step instructions, complete with photos to guide you through the process. The exact measurements for a perfect dish are provided to ensure consistent results every time.
Prep Time: 15 minutes
Cook Time: 25 minutes
Servings: 6
Net Carbs: 6 net carbs per serving

Ingredients
- 1 1/2 pounds Ground Beef
- 1 tsp Italian Seasoning
- 2 tsp Minced Garlic
- 1 1/2 cups Keto Marinara Sauce
- Salt and Pepper to taste
- 1/4 cup Parmesan Cheese, grated
- 2 cups Mozzarella Cheese, shredded
- 1/4 cup Mushrooms, sliced
- 1/4 cup Red Onion, sliced
- 1/4 cup Bell Pepper, sliced
- 1/4 cup Pepperoni Slices
Directions

- Add the ground beef to a large skillet over medium-high heat. Cook, breaking up the meat with a spoon, until it is completely browned. Once cooked, carefully drain any excess grease from the skillet to ensure a less oily casserole.
- Reduce the heat to medium. Add the minced garlic and Italian seasoning to the browned ground beef. Season generously with salt and pepper to taste. Sauté for about 30 seconds, allowing the flavors to meld beautifully.
- Pour in the keto marinara sauce, stirring well to combine it thoroughly with the seasoned ground beef mixture. This forms the flavorful base of your pizza casserole.
- Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius).
- Spread the prepared ground beef and marinara mixture evenly into the bottom of a 9×9 inch baking dish. Ensure it forms a consistent layer.
- Sprinkle the grated Parmesan cheese over the ground beef layer, followed by two-thirds (⅔) of the shredded mozzarella cheese. This creates a wonderful cheesy foundation.
- Arrange the sliced mushrooms, red onions, bell peppers, and pepperoni slices evenly over the cheese layer. Feel free to add any other favorite low-carb toppings at this stage.
- Finally, sprinkle the remaining mozzarella cheese over the top of the casserole. This will create a golden, bubbly cheese crust when baked.
- Bake for 20 minutes, or until the cheese is melted, bubbly, and lightly golden brown. Let it cool for a few minutes before serving to allow the layers to set.




Recipe Notes
Calories: 475 kcal per serving
Net Carbs: 6 Net Carbs Per Serving
The nutritional information for this recipe is calculated as a courtesy and is an approximate only. We cannot guarantee the absolute accuracy of the nutritional information for any recipes on this site, as values can vary based on specific brands and ingredients used.
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More Delightful Keto Casserole Recipes
Are you now in love with the ease and satisfaction of casseroles? You’re in luck! Casseroles are a fantastic way to enjoy comforting, balanced meals, and the keto world is full of delicious options. From hearty main courses to delightful side dishes, there are countless ways to create and serve them while staying low-carb. If you’re looking for more easy and satisfying keto casserole recipes to add to your rotation, here are some of our most popular choices that are sure to become family favorites:
- Low Carb Cheesy Ranch Broccoli Casserole: A creamy and flavorful broccoli dish that’s perfect as a side or light meal.
- Cheesy Low-Carb Broccoli Rice Casserole with Ham: A comforting and hearty meal, great for using up leftover ham.
- Keto Enchilada Casserole with Zoodles: A vibrant and zesty Mexican-inspired dish, using zucchini noodles for a low-carb twist.
- Keto Baked Chicken Caprese Casserole: A fresh and flavorful Italian-inspired casserole with tender chicken, tomatoes, basil, and mozzarella.
- Keto Crab Rangoon Casserole: A unique and indulgent casserole that captures the essence of a classic appetizer in a low-carb format.
