Delicious Low Carb Pizza Casserole

Category: Meals for Every Occasion

This flavorful low-carb dish brings together everything you love about pizza with none of the guilt. Crisp cauliflower, seasoned sausage, fresh peppers, mushrooms, and lots of melted mozzarella come together with a tasty marinara sauce. Baked to a bubbly, golden perfection, this easy-to-make casserole is a great choice for quick dinners, family meals, or any time you're craving comfort food that fits your diet. It's simple, satisfying, and perfect for sharing!

Clare Greco
Updated on Thu, 08 May 2025 09:59:40 GMT
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Flavorful pizza casserole that's low carb | homebitesbyana.com

This filling low carb pizza bake brings together all the tasty pizza flavors without loading up on carbs. Great for keto or gluten-free folks, it's loaded with protein, vegetables, and plenty of cheese. You'll quickly forget you're eating something that's actually low in carbs.

I came up with this dish during my keto days when I really missed having pizza nights with the family. These days my teenagers ask for this more than regular pizza, even though they don't worry about carbs.

What You'll Need

  • Italian Sausage: gives you rich taste and solid texture as the main protein
  • Cauliflower: stands in for traditional pasta while keeping carbs low and still feeling substantial
  • Mushrooms: bring a meaty feel and rich flavor - go with cremini for better taste
  • Green Pepper: adds some snap and that traditional pizza taste
  • Pepperoni: brings the real pizza feeling with its spicy kick
  • Low Carb Pasta Sauce: check the labels carefully since Raos Homemade Marinara has very little added sugar
  • Mozzarella Cheese: makes that stretchy pizza pull we all love - don't go for low-fat here
  • Parmesan Cheese: gives the topping a nice sharp flavor boost
  • Italian Seasoning: pulls everything together with familiar pizza herbs

How To Make It

Cook the Cauliflower:
Chop cauliflower into small chunks then put in a microwave bowl with water and top with a wet paper towel. Microwave about 3 minutes till it's soft but still has some bite. This quick method keeps good texture but makes sure it mixes well with everything else.
Cook the Sausage:
Fry Italian sausage in a big pan on medium-high heat breaking it up as you go. Give yourself about 15 minutes here to get nice brown bits which really pump up the flavor. Pour off extra fat so your dish isn't swimming in grease.
Cook the Mushrooms:
Drop some olive oil in the same pan you used for sausage and cook mushrooms all the way through for 10 minutes. This longer cooking gets rid of water that could make your casserole soggy. They'll get much smaller and taste more intense.
Build Your Casserole:
First spread pasta sauce on the bottom of your baking dish then add half your meat and veggie mix. Keep building with more sauce pepperoni and plenty of mozzarella. Do another round of layers ending with a mix of Parmesan and Italian seasoning on top for a tasty crust.
Bake It Up:
Cook at 400°F for 30 minutes until it's bubbly and golden. Let it sit for 5 minutes before you dig in so it can firm up a bit. Look for bubbles around the edges and a slightly brown top to know it's done.
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The cauliflower really makes this recipe work. I wasn't sure about using it instead of pasta at first, but its bland flavor soaks up all the Italian seasonings so well. My husband even mentioned that this bake tastes better than normal pizza because every bite has all the good stuff in it.

Prep Ahead and Storage Options

This pizza bake actually tastes better when made a day in advance. You can do all the steps except baking, wrap it tight with foil, and keep it in the fridge up to 2 days. When you're ready to eat, just bake as normal but add about 10 extra minutes since it'll be cold.

Any leftovers keep well in sealed containers in the fridge for up to 4 days. If you want to save it longer, divide the cooled casserole into freezer containers and freeze up to 3 months. Thaw in the fridge overnight then warm up in a 350°F oven until it's hot all the way through.

What to Serve With It

This pizza bake goes great with a simple arugula salad with just olive oil and lemon juice for a complete meal. The peppery greens balance out the rich casserole nicely. If some family members aren't watching carbs, garlic bread makes a nice addition for them.

To make it feel more like pizza night, put out small dishes of extra toppings like red pepper flakes, fresh basil, and more Parmesan so everyone can dress up their own portion. Kids especially like this hands-on approach to dinner.

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Low Carb Pizza Casserole | homebitesbyana.com

Different Topping Ideas

You can switch up this flexible recipe in tons of ways. Check out these popular versions for different tastes:

  • For Meat Fans: throw in some crunchy bacon and chopped ham with the other meats
  • Veggie Loaded: mix in olives, onions, and diced zucchini
  • Buffalo Chicken: use shredded chicken coated in buffalo sauce instead of Italian sausage
  • Mediterranean Twist: add feta cheese, olives, and artichoke hearts

Recipe FAQs

→ Could I swap out the cauliflower for something else?

Definitely! You can go for broccoli or zucchini instead. Both pair beautifully with the other flavors in this dish.

→ What’s the best marinara option for this casserole?

Stick with a keto-friendly marinara like Rao's Homemade. It keeps the carbs low and the flavors strong.

→ Can I prep this before serving?

Absolutely, you can prepare the casserole a few hours in advance. Keep it in the fridge and pop it in the oven when you're ready to eat.

→ How do I store and reheat any leftovers?

Put leftovers in a container with a tight lid and keep it in the fridge for up to 3 days. Warm it up in the oven or microwave before eating.

→ Could I replace Italian sausage with another protein?

Sure thing! Ground beef works well. Just toss in extra seasonings like oregano or garlic to boost the taste even more.

→ Is this dish something kids would enjoy?

Yes! Kids often love the pizza-like flavors. Just skip mushrooms or other items they might not like as much.

→ Can I turn this into a meat-free option?

Yes, you can! Simply leave out the sausage and add extra veggies like zucchini, eggplant, or spinach to keep it hearty.

Pizza Casserole Low Carb

Enjoy all the cheesy, saucy goodness of pizza in this low-carb casserole loaded with tasty, gluten-free ingredients.

Prep Time
20 min
Cooking Time
55 min
Total Time
75 min
By: Ana

Category: Lunch & Dinner

Skill Level: Intermediate

Cuisine: American

Yields: 10 Servings

Dietary Preferences: Low-Carb, Gluten-Free

Ingredients

→ Vegetables

01 1 green bell pepper, diced into small chunks
02 8 ounces of mushrooms, thinly sliced
03 14 ounces of small cauliflower florets

→ Protein

04 2.5 ounces of sliced pepperoni
05 2 pounds of Italian sausage, casing removed if needed

→ Dairy

06 1/4 cup powdered Parmesan cheese
07 12 ounces shredded mozzarella cheese

→ Condiments & Sauces

08 1.5 cups of marinara sauce (opt for low-carb, e.g., Rao's)

→ Spices & Oils

09 A teaspoon of Italian seasoning
10 A tablespoon of olive oil

Steps

Step 01

Put the cauliflower in a microwaveable bowl with a cup of water. Cover with a moist paper towel and microwave for around 3 minutes until it's tender but firm.

Step 02

Pour out the water, then pat the cauliflower dry using paper towels. Leave it aside for later.

Step 03

Set your oven to 400°F (200°C) to preheat.

Step 04

Heat up a big skillet on medium-high and cook the sausage for roughly 15 minutes. If there’s grease, drain it, then set the sausage aside.

Step 05

Using the same skillet, add olive oil and cook the mushrooms on medium-high for about 10 minutes to get rid of extra moisture. Set aside when done.

Step 06

Coat a 13x9 inch baking dish lightly with nonstick spray. Add ½ cup of marinara to the bottom.

Step 07

In a big mixing bowl, toss together the cauliflower, cooked mushrooms, browned sausage, and diced peppers until it's all evenly combined.

Step 08

Take half the mix and spread it in the baking dish. Add ½ cup of marinara, half the pepperoni slices (press them gently into the mixture), and 6 ounces of mozzarella over it.

Step 09

Layer the rest of the mix over the top. Add the leftover marinara, then sprinkle the final 6 ounces of mozzarella. Save 10 pepperoni slices for the topping.

Step 10

Stir the Parmesan with Italian seasoning in a small bowl. Sprinkle this across the top and place the reserved pepperoni slices evenly on the dish.

Step 11

Slide the dish into the hot oven and bake for 30 minutes, or until everything's hot and the cheese is bubbly.

Notes

  1. Each portion has 4 net carbs, which fits a keto or low-carb plan.

Required Equipment

  • Bowl safe for microwaves
  • Large frying pan
  • Wet paper towel
  • 13x9 inch baking dish
  • Big mixing bowl

Allergen Information

Review each ingredient for potential allergens and consult a healthcare professional if needed.
  • Includes dairy from Parmesan and mozzarella cheeses.
  • Potential gluten presence if marinara isn’t gluten-free.

Nutrition Facts (Per Serving)

These details are for informational purposes only and don’t replace medical advice.
  • Calories: 519
  • Fat: 43 g
  • Carbs: 7 g
  • Protein: 27 g