Low carb pizza casserole is one of those weeknight dinners that feels indulgent but keeps you right on track. No crust, no complicated prep, just layers of cheesy, saucy goodness baked into one satisfying dish. I started making this on hectic Thursday nights when everyone wanted pizza but I wanted something that actually fit our goals, and it never disappoints.
This low carb pizza casserole brings together seasoned ground beef, tangy pizza sauce, and melty mozzarella in a single bake that the whole family devours. The cream cheese blends into the meat filling and creates the most velvety, rich base you can imagine. It hits every pizza craving without the carb crash.
Your family will thank you!
Table of Contents
Ingredients for Low Carb Pizza Casserole
I always keep these ingredients on hand because this casserole comes together with almost no planning. My go-to brand for pizza sauce is Rao’s since it keeps the sugar low and the flavor bold. Here is everything you need:
- 1 lb lean ground beef
- 8 oz cream cheese, softened – I recommend pulling this out 30 minutes before cooking so it blends in smoothly
- 1 cup low-sugar pizza sauce – Pro tip: always check the label for hidden sugars
- 2 cups shredded mozzarella cheese
- 8 oz pepperoni slices
- 1 cup diced bell peppers (any color)
- 1/4 cup sliced black olives (optional)
- 1 tsp Italian seasoning (optional)
- Chopped mushrooms or spinach (optional) – In my experience, sneaking in spinach adds nutrients without changing the flavor at all
Step-by-Step Instructions
I recommend reading through all steps once before starting. This low carb pizza casserole moves quickly and having everything ready makes the whole process smooth.
Step 1: Preheat your oven to 375°F and grease a 9×13-inch baking dish. Set it aside while you prepare the filling.
Step 2: Brown the ground beef in a large skillet over medium heat, breaking it apart as it cooks. Once fully browned with no pink remaining, drain the fat completely using a paper towel-lined colander. Skipping this step can make the casserole watery.
Step 3: Return the drained beef to the skillet and take it off the heat. Stir in the softened cream cheese and pizza sauce until everything is fully combined into a smooth, creamy filling. The cream cheese should melt right into the warm beef.
Step 4: Spread the beef mixture evenly into your prepared baking dish. Layer the diced bell peppers on top, followed by the shredded mozzarella. Finish with pepperoni slices and any optional toppings you like.
Step 5: Bake uncovered at 375°F for 20 to 25 minutes until the cheese is bubbling and golden at the edges. For a crispier, slightly browned top, switch the oven to broil for the final 2 minutes and watch it closely.
Step 6: Remove from the oven and let the casserole rest for 5 minutes before slicing. This helps the layers set and makes serving much cleaner.
Best Side Dishes for Low Carb Pizza Casserole
A light, fresh side balances the richness of this cheesy bake perfectly. Here are some great options to round out the meal:
Garlic Butter Green Beans: Quick, crisp, and buttery, these cook in under 10 minutes and complement the Italian flavors beautifully. Check out this lemon garlic butter chicken and green beans recipe for inspiration on seasoning your green beans the same way.
Simple Green Salad: Tossed with olive oil, red wine vinegar, and a pinch of oregano, a fresh salad adds brightness and cuts through the richness of the beef and cheese.
Roasted Cauliflower: Lightly seasoned and roasted until golden, cauliflower soaks up the pizza flavors and keeps the meal fully low carb. This crispy oven roasted cauliflower recipe is a great starting point.
Sauteed Vegetables: A quick mix of zucchini, bell peppers, and mushrooms keeps things colorful and nutritious. This healthy sauteed vegetables recipe pairs wonderfully with casserole nights.
Cucumber Tomato Salad: Fresh, crunchy, and finished with a light lemony dressing, this salad adds a cool contrast to the warm, melty casserole.
If you love cheesy baked dinners like this one, you might also enjoy this pizza style cottage cheese bake for another fun low carb pizza night idea. For a similar keto-friendly casserole option, this easy low carb chicken casserole is another weeknight winner worth bookmarking.
Keeping It Fresh: Storage and Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. The flavors actually deepen overnight, making it one of those rare dishes that tastes even better the next day for lunch.
For reheating, I recommend the toaster oven or air fryer at 350°F for 8 to 10 minutes. It brings the cheese back to life and keeps the edges slightly crisp. The microwave works too for a quick lunch option, just heat in 60-second intervals until warmed through.
To freeze, wrap the baked casserole tightly in plastic wrap and foil and store for up to 2 months. Thaw overnight in the refrigerator before reheating. If freezing unbaked, assemble the casserole, wrap well, freeze, and thaw overnight before baking as directed.
Frequently Asked Questions
Can I make this low carb pizza casserole ahead of time?
Yes. Assemble the casserole up to 24 hours in advance, cover tightly with foil, and refrigerate. When ready to bake, add 5 to 10 extra minutes to the bake time since it goes in cold.
Can I use a different protein instead of ground beef?
Absolutely. Ground turkey or Italian sausage both work great here. Italian sausage adds extra flavor and a little heat, while ground turkey keeps it leaner. Just drain the fat well either way before mixing in the cream cheese and sauce.
How do I keep the casserole from getting watery?
Two things make the biggest difference. First, drain the cooked beef thoroughly using a paper towel-lined colander. Second, if you add vegetables like mushrooms or spinach, saute them briefly beforehand to release their moisture before layering them into the dish.
Conclusion
This low carb pizza casserole is one of those weeknight wins that feels completely indulgent while keeping you right on track. It is easy to put together, endlessly customizable with your favorite pizza toppings, and genuinely satisfying for the whole table. Try it tonight and watch it disappear. Once you make it the first time, it will earn a permanent spot in your dinner rotation.
Low Carb Pizza Casserole
Ingredients
Equipment
Method
- Preheat oven to 375°F and grease a 9×13-inch baking dish.
- Brown ground beef in a large skillet over medium heat, breaking apart as it cooks. Once fully browned with no pink remaining, drain fat completely using a paper towel-lined colander.
- Return drained beef to the skillet off heat. Stir in softened cream cheese and pizza sauce until fully combined into a smooth, creamy filling.
- Spread beef mixture evenly into the prepared baking dish. Layer diced bell peppers on top, followed by shredded mozzarella, then finish with pepperoni slices and any optional toppings.
- Bake uncovered at 375°F for 20 to 25 minutes until cheese is bubbling and golden at the edges.
- Optional: Switch oven to broil for the final 2 minutes for a crispier browned top. Watch closely to avoid burning.
- Remove from oven and let rest for 5 minutes before slicing and serving.
