Easy Low Carb Pizza Casserole Recipe

There is something truly satisfying about a dish that delivers all the flavor and comfort of pizza without the carb overload, and this Easy Low Carb Pizza Casserole does just that! Packed with hearty Italian sausage, gooey mozzarella, pepperoni slices, and a delicious blend of veggies nestled in a luscious low-carb marinara sauce, every bite bursts with that iconic pizza taste you love. This casserole is a game changer for anyone watching carbs but craving bold flavors and a filling meal that feels like a warm hug on a plate.

Ingredients You’ll Need

Each ingredient in this Easy Low Carb Pizza Casserole has a simple yet essential role, whether it’s building texture, uplifting flavor, or adding vibrant color. Together, they create a harmonious and satisfying dish without complicated steps or rare pantry staples.

• Cauliflower florets (14 ounces): Acts as the low-carb base, giving a tender bite while soaking up all the delicious sauce.
• Pepperoni slices (2.5 ounces): Adds a spicy, savory punch with that signature pizza flavor.
• Italian sausage (2 pounds, casings removed): Delivers rich, meaty depth and hearty satisfaction.
• Olive oil (1 tablespoon): Helps sauté mushrooms and gently enhance flavors without overpowering.
• Sliced mushrooms (8 ounces): Gives earthy taste and moisture to balance the meatiness.
• Green bell pepper (1, cut bite-size): Provides a fresh crunch and a pop of green color.
• Shredded mozzarella cheese (12 ounces): Melts perfectly for that ooey-gooey pizza cheesiness we all adore.
• Low-carb pasta sauce (1.5 cups): Brings tangy, herb-infused sauciness that ties every layer together (Rao’s marinara is a great pick!).
• Grated parmesan cheese (1/4 cup): Offers a salty, nutty finish that crowns the dish beautifully.
• Italian seasoning (1 teaspoon): Infuses classic Mediterranean herbs for authentic pizza flair.

How to Make Easy Low Carb Pizza Casserole

Step 1: Prepare and Steam the Cauliflower

Start by cutting your cauliflower into bite-size florets to ensure even steaming and easy eating later. Place them in a microwave-safe bowl with a little water and cover with a damp paper towel. Microwave for about 3 minutes until they are just tender—soft enough to enjoy but still holding shape. Drain and pat dry to avoid sogginess in your final casserole. This step is key for a perfect vegetable foundation in our Easy Low Carb Pizza Casserole.

Step 2: Cook the Sausage and Mushrooms

While your cauliflower cools, heat a skillet and cook the Italian sausage over medium-high heat until fully browned and cooked through, about 15 minutes. After draining excess fat, sauté your sliced mushrooms in olive oil until they release their moisture, about 10 minutes. This step intensifies the mushroom’s flavor and prevents watery casserole layers. Setting these savory components aside lets us build the next layers with confidence.

Step 3: Prepare the Casserole Dish

Grab a 13-by-9-inch casserole dish and give it a quick spray with non-stick cooking spray to ensure easy removal later. Start by spreading a thin layer of pasta sauce on the bottom—this prevents sticking and infuses flavor right from the base. In a big mixing bowl, toss together your steamed cauliflower, cooked sausage, mushrooms, and fresh green bell peppers for a colorful and hearty mixture ready to assemble.

Step 4: Assemble the Layers

Spread half of your vegetable and sausage mixture into the casserole dish. Drizzle half of your sauce over it, then distribute half the pepperoni slices evenly, pressing them gently into the mix. Top with half the shredded mozzarella to start that irresistible cheesy layer. Repeat this layering with the remaining mixture, sauce, pepperoni, and cheese, saving 10 pepperoni slices for the final topping. Layering like this ensures every bite delivers balanced flavor and texture.

Step 5: Add Final Toppings and Bake

In a small bowl, stir together grated parmesan cheese and Italian seasoning to create an aromatic topping. Sprinkle this evenly over the assembled casserole, then artistically arrange your reserved pepperoni slices on top for eye-catching presentation. Bake the casserole in your preheated 400-degree oven for 30 minutes, or until heated through and the cheese is perfectly melted and bubbly. This step seals all those wonderful flavors inside a warm, golden blanket.

Step 6: Serve

Once out of the oven, let your Easy Low Carb Pizza Casserole rest for a few minutes to set and cool slightly. This little pause helps the layers hold together when slicing and ensures every serving stays delicious and neat. Then, dive in and savor the wonderful medley of textures and classic pizza flavors without any guilt or carb overload.

How to Serve Easy Low Carb Pizza Casserole

Garnishes

A sprinkle of freshly chopped basil or parsley adds a fresh burst of color and herbaceous notes, brightening each flavorful bite. You could also add a pinch of crushed red pepper flakes for a subtle kick that complements the sausage and pepperoni wonderfully.

Side Dishes

Pair this casserole with a crisp green salad tossed in a tangy vinaigrette to balance the rich, cheesy casserole. Roasted or steamed veggies like asparagus or broccoli also make excellent, light companions that keep your meal well-rounded and satisfying.

Creative Ways to Present

For a fun twist, serve individual portions in small ramekins or skillets to keep the comforting vibe but add a restaurant-style flair. You can also top each serving with an extra sprinkle of parmesan or a drizzle of garlic-infused olive oil to elevate the presentation and flavor.

Make Ahead and Storage

Storing Leftovers

Once cooled completely, cover your casserole tightly with foil or plastic wrap and place it in the refrigerator. It will keep well for up to 3-4 days, making it a perfect make-ahead meal that reheats beautifully.

Freezing

This Easy Low Carb Pizza Casserole freezes wonderfully! Wrap it securely after baking or assemble it and freeze before baking for a convenient, ready-to-go meal anytime. Just thaw overnight in the refrigerator before reheating or baking from frozen, adjusting time accordingly.

Reheating

Reheat leftovers in the oven at 350 degrees Fahrenheit until warmed through to keep the cheese melty and the casserole texture intact. Alternatively, microwave individual portions on medium power, but expect a slight difference in texture compared to oven reheating.

FAQs

Can I use ground beef instead of Italian sausage?

Absolutely! Ground beef works as a great substitute if you want a milder flavor or have sausage preferences. Just season it with your favorite Italian herbs to keep that pizza vibe going strong.

Is this casserole suitable for a keto diet?

Yes, the Easy Low Carb Pizza Casserole fits perfectly within most keto guidelines thanks to its low-carb cauliflower base and high-fat cheese and sausage layers, making it a delicious keto-friendly comfort meal.

Can I add other vegetables?

Definitely! Feel free to customize with vegetables like spinach, zucchini, or olives to add your personal touch and add even more nutrition and flavor to the dish.

What is the best cheese to use?

Mozzarella is ideal for that classic pizza melt, but you can mix in provolone or cheddar for a sharper or creamier twist. Just make sure to use good-quality shredded cheese for best melting results.

How do I keep the casserole from being watery?

Patting the cauliflower dry after steaming and thoroughly cooking the mushrooms to evaporate their moisture are the two key steps to avoid excess water. This keeps your casserole perfectly thick and rich, not soggy.

Final Thoughts

If you want to enjoy pizza flavors without the carb overload, this Easy Low Carb Pizza Casserole is an absolute must-try. It’s loaded with wholesome ingredients, straightforward to prepare, and offers every bit of the cheesy, meaty satisfaction you crave. Trust me, once you make this, it’ll quickly become a go-to favorite in your kitchen too!

Print