
This filling keto pizza bake combines all the tasty pizza flavors without any carbs. Great for folks on gluten-free or low-carb diets, it's loaded with proteins, vegetables, and plenty of cheese. You'll completely forget you're eating a low carb dish after just one taste.
I came up with this dish during my keto adventure when I really missed family pizza nights. Now my carb-crazy teenagers ask for this more than regular pizza.
Ingredients
- Italian Sausage: gives deep taste and substantial feel as the main protein
- Cauliflower: stands in for normal pasta to keep carbs down while still feeling substantial
- Mushrooms: bring earthy flavor and meaty bite - go with cremini for better taste
- Green Pepper: adds a nice snap and traditional pizza taste
- Pepperoni: brings that real pizza feel with a bit of spice
- Low Carb Pasta Sauce: check ingredients carefully - Raos Homemade Marinara has very little sugar
- Mozzarella Cheese: makes that stretchy pizza pull - pick full-fat for tastier results
- Parmesan Cheese: gives the top layer a rich, savory kick
- Italian Seasoning: pulls all flavors together with typical pizza herbs
Step-by-Step Instructions
- Steam the Cauliflower:
- Chop cauliflower into small chunks then put in a microwave-safe dish with water and top with a wet paper towel. Microwave about 3 minutes till soft but not mushy. This fast cooking keeps some texture while helping it mix well with other stuff.
- Brown the Sausage:
- Cook Italian sausage in a big pan over medium-high heat, breaking it up as it cooks. This takes around 15 minutes to get nice brown bits that add tons of flavor. Pour off extra fat so your dish won't be too greasy.
- Sauté the Mushrooms:
- Add olive oil to the same pan you cooked sausage in and cook mushrooms well for 10 minutes. This longer cooking time gets rid of water that could make your casserole soggy. The mushrooms will get much smaller and taste stronger.
- Layer the Casserole:
- Begin with pasta sauce on the bottom of your greased baking dish then add half the meat and veggie mix. Keep building flavor with more sauce, pepperoni, and lots of mozzarella. Do another round of layers, finishing with a mix of Parmesan and Italian herbs for a tasty top crust.
- Bake to Perfection:
- Cook at 400°F for 30 minutes till bubbly and golden. Let the dish sit for 5 minutes before serving so it firms up and serves easier. Look for bubbling edges and a slightly brown top to know it's done.

Cauliflower is the hidden champion in this dish. I wasn't sure about using it instead of pasta at first, but its bland taste soaks up all the Italian flavors wonderfully. My husband even said this bake has more taste than normal pizza because every bite has all the toppings mixed in.
Make-Ahead and Storage Tips
This pizza bake actually tastes better when prepared a day early. Do all steps except baking, wrap well with foil, and keep in the fridge up to 2 days. When you're ready to eat, bake as normal but add about 10 minutes since it'll be cold.
Any leftovers keep well in sealed containers in the fridge for up to 4 days. For longer storage, put cooled portions in freezer containers and freeze up to 3 months. Thaw in the fridge overnight before warming in a 350°F oven until hot all the way through.
Perfect Pairings
Enjoy this pizza bake with a simple arugula salad drizzled with olive oil and lemon juice for a full meal. The peppery leaves work well against the rich bake. Family members who aren't counting carbs might like some garlic bread on the side.
To create a pizza night feel, put out small dishes of extra toppings like red pepper flakes, fresh basil, and more Parmesan so everyone can dress up their own serving. This hands-on touch makes dinner more fun, especially for kids.

Topping Variations
This flexible dish works with many different add-ins. Try these popular twists for new flavor experiences:
- Meat Lovers Version: throw in crunchy bacon and chopped ham with the other meats
- Veggie Supreme: mix in olives, onions, and diced zucchini
- Buffalo Chicken: swap out Italian sausage for shredded chicken mixed with buffalo sauce
- Mediterranean Style: add feta cheese, olives, and artichoke hearts
Recipe FAQs
- → Can veggies other than cauliflower work?
Yes! Try swapping cauliflower for broccoli or zucchini. They pair wonderfully with the rest of the ingredients.
- → What marinara works best here?
Stick to a low-carb marinara like Rao's for the best balance of flavor and keto compliance.
- → Could I prep this earlier in the day?
Totally! Assemble it in advance, chill for a bit, and bake right before serving for the freshest taste.
- → How do I keep leftovers fresh?
Pop any extras in an airtight container in your fridge for up to 3 days. Warm it up before enjoying again!
- → Can I replace the sausage with ground beef?
No problem! Ground beef is a solid switch. Kick up the flavor with garlic or some dried herbs.
- → Is this a hit with kids?
Most kids enjoy the pizza-like flavors! Feel free to skip mushrooms or other ingredients they don't love.
- → Is there a vegetarian version?
You can make it meat-free by using extra veggies, like zucchini, spinach, or eggplant, instead of sausage.