Keto Turkey Pepperoni Pizza Casserole Ready in 45 Minutes

If you’re doing keto, you already know the struggle. Pizza smells amazing, looks amazing, and you just can’t have it. Or so you think. This Keto Turkey Pepperoni Pizza Casserole gives you every single pizza flavor you’re craving, with almost none of the carbs. I’m Emily, and I threw this together on a chaotic Tuesday night when my kids were begging for pizza and I had exactly zero desire to blow my macros. It was an instant hit. We’re talking gooey mozzarella, savory pepperoni, and rich marinara in one bubbling dish. Ready in 45 minutes. Tested by my very picky family and requested again the very next week.

Table of Contents

Table of Contents

Why You’ll Love This Keto Turkey Pepperoni Pizza Casserole

Trust me, once you make this, it’s going straight into your regular dinner rotation. Here’s why:

• Only 7g net carbs per serving – You get all the pizza satisfaction without the blood sugar spike. Seriously, no crust needed.
• On the table in 45 minutes – Fifteen minutes of prep and 30 minutes in the oven. Busy weeknights, consider yourself handled.
• One dish to wash – Everything bakes in a single 9×13 pan. Less mess means more time with your family.
• Kids actually eat it – Mine demolished it. If your kids love pizza, they will love this casserole too.
• Freezer-friendly – Portion it out and freeze for up to two months. Future you will be so grateful.
• Totally customizable – Throw on black olives, jalapeños, or spinach. Make it yours every single time.

Ingredients for Keto Turkey Pepperoni Pizza Casserole

This recipe makes 6 generous servings and only takes about 15 minutes to pull together before it goes in the oven. Here’s everything you need:

For the meat and base:

• 1½ pounds lean ground turkey (or lean ground beef)
• 1 tablespoon olive oil
• 1 small onion, diced
• 3 cloves garlic, minced
• 1 cup low-sugar marinara sauce
• 1 teaspoon Italian seasoning
• ½ teaspoon garlic powder
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 1 cup cottage cheese
• 2 cups shredded mozzarella cheese, divided
• ¼ cup grated Parmesan cheese

For the toppings:

• 20 slices turkey pepperoni
• ½ cup sliced mushrooms
• ¼ cup diced green bell pepper
• Fresh basil for garnish

Ingredient Notes and Substitutions for Keto Turkey Pepperoni Pizza Casserole

A few things I really want you to know before you start.

Don’t skip the cottage cheese. I know it sounds a little unexpected in a pizza casserole, but it melts right into the mixture and adds the most amazing creaminess. It also bumps up the protein without adding extra carbs. Trust me on this one. For more high-protein recipes with cottage cheese, check out this high-protein chocolate cake with cottage cheese.

Use low-sugar marinara. Regular store-bought marinara can sneak in a surprising amount of sugar. Check the label and grab one with 3 to 4 grams of sugar per serving or less.

Ground beef works great here too. If turkey isn’t your thing, lean ground beef swaps in perfectly.

Turkey pepperoni is a smart choice if you want to keep the fat a little lower. Pork pepperoni works too, but you’ll get more grease on top.

Equipment You Need

Nothing fancy required here. If you have these basics in your kitchen, you’re all set:

• A large skillet for browning the meat and building the base
• A 9×13-inch baking dish for the casserole
• A wooden spoon or spatula for stirring and breaking up the turkey
• A knife and cutting board for dicing the onion and bell pepper
• Measuring cups and spoons to keep everything accurate

How to Make Keto Turkey Pepperoni Pizza Casserole

This comes together so easily, I promise. Just follow these steps and you’ll have a bubbling, cheesy casserole on the table in no time.

1. Preheat your oven to 375°F (190°C). Lightly grease your 9×13-inch baking dish and set it aside. Getting this done first means you’re not scrambling later.
2. Heat the olive oil in a large skillet over medium heat. Once it’s shimmering, add your diced onion. Cook for about 3 minutes, stirring occasionally, until it softens up.
3. Add the ground turkey. Break it apart as it cooks and keep stirring until it’s fully browned with no pink left. If there’s excess grease pooling in the pan, go ahead and drain it off now. Turkey is usually pretty lean, but it’s worth checking.
4. Stir in the minced garlic, marinara sauce, Italian seasoning, garlic powder, salt, and black pepper. Give everything a good mix and let those flavors come together for a minute or two.
5. Take the skillet off the heat. This part matters. You want the mixture to cool down just slightly before adding the cheese, or it can get grainy and weird. Once it’s off the heat, stir in the cottage cheese, 1 cup of the shredded mozzarella, and the Parmesan. Mix until everything is well combined.
6. Transfer the mixture into your prepared baking dish and spread it out evenly with your spatula.
7. Layer on the toppings. Scatter the remaining 1 cup of mozzarella over the top, then arrange the turkey pepperoni slices, sliced mushrooms, and diced green bell pepper.
8. Bake for 25 to 30 minutes, until the casserole is hot, bubbly around the edges, and the cheese on top is golden and melty.
9. Garnish with fresh basil right before serving. It adds a little color and a fresh pop of flavor that really makes it feel like pizza.

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Tips for the Best Keto Turkey Pepperoni Pizza Casserole

• Don’t skip the cottage cheese. It’s the secret to that creamy, rich interior. You won’t taste it on its own, but you’ll definitely notice if it’s missing. For more recipes featuring cottage cheese, try this 3-ingredient cottage cheese flatbread.
• Shred your mozzarella fresh if you can. Pre-shredded bags have a coating that stops them from melting as smoothly. Freshly shredded mozzarella gives you that gorgeous, stretchy pull.
• Let the skillet mixture cool slightly before mixing in the cheese. Too much heat makes the cheese clump and turn greasy instead of creamy. Just a minute or two off the heat is all you need.
• Check it at the 25-minute mark. Ovens vary, and you don’t want the top to overbrown. If the cheese is golden and the edges are bubbling, it’s done.
• Let it rest for 5 minutes before you cut into it. I know it’s hard to wait, but it firms up just enough to serve cleanly and keeps everyone from burning their mouths.

Variations to Try with Your Keto Turkey Pepperoni Pizza Casserole

Once you’ve made this once, you’ll want to mix it up. Here are some easy ways to change things around while keeping it low-carb:

• Add black olives or sliced jalapeños on top before baking for a briny, spicy kick. Both are keto-friendly and totally delicious here.
• Toss in a handful of fresh spinach when you stir in the marinara. It wilts right down and adds a little extra nutrition without changing the flavor much.
• Swap the ground turkey for Italian sausage if you want something richer and more indulgent. Just check the label to make sure it’s low in added sugars.
• Make it spicy by adding half a teaspoon of red pepper flakes to the skillet with the other seasonings. My husband does this every single time now.
• Try different low-carb veggies like diced zucchini or sliced banana peppers. Just make sure whatever you add fits your macros before tossing it in. For other low-carb veggie ideas, check out this cheesy shredded zucchini casserole.

Serving Suggestions for Keto Turkey Pepperoni Pizza Casserole

Honestly, this casserole is so hearty and filling that it works perfectly as a standalone dinner. But if you want to round out the meal, here are a few simple sides that pair beautifully with it:

• A simple green salad dressed with olive oil and fresh lemon juice. Light, crisp, and ready in two minutes.
• Roasted zucchini tossed with olive oil and a pinch of Italian seasoning. It practically makes itself while the casserole bakes.
• Steamed broccoli with a little butter and garlic. Classic, easy, and the kids never complain.
• Garlic butter cauliflower if you want something a little more substantial on the side.

Storage and Reheating Instructions

This casserole is a meal prep dream. Make it once and you’ve got dinner handled for days.

• Refrigerator: Store leftovers in an airtight container in the fridge for up to 4 days. It reheats beautifully and honestly tastes even better the next day.
• Freezer: Portion it out into individual servings and freeze for up to 2 months. Wrap each portion tightly so it doesn’t get freezer burn.
• Reheating: Microwave individual portions for 2 to 3 minutes, or pop them in the oven at 350°F until warmed all the way through. The oven method keeps the cheese a little crispier on top, which I personally love.

Nutrition Information for Keto Turkey Pepperoni Pizza Casserole

Here’s the estimated breakdown per serving, based on one-sixth of the casserole:

• Calories: 380
• Fat: 22g
• Saturated Fat: 9g
• Protein: 38g
• Carbohydrates: 7g
• Fiber: 1g
• Sugar: 4g
• Sodium: 780mg
• Cholesterol: 110mg

These are estimates. Your actual numbers may vary depending on the specific brands and ingredients you use, so always double-check if you’re tracking closely.

Frequently Asked Questions About Keto Turkey Pepperoni Pizza Casserole

Can you make this casserole ahead of time?
Yes, absolutely. You can assemble the whole thing the night before, cover it tightly, and keep it in the fridge. When you’re ready, just bake it straight from the fridge and add about 5 extra minutes to the cook time. It makes this easy keto meal even easier on busy weeknights.

Can you use a different protein instead of ground turkey?
Definitely. Lean ground beef, Italian sausage, or even ground chicken all work great in this low carb pizza casserole. Just check that whatever you use doesn’t have added sugars or fillers, especially with sausage.

Is this casserole gluten-free?
It can be. Most of the ingredients are naturally gluten-free, but always check your marinara sauce and pepperoni labels to be sure. Some brands sneak in hidden gluten.

How do you know when the casserole is done baking?
Look for bubbling edges and golden, melted cheese on top. That’s your sign this keto casserole dinner is ready to come out. I always peek at the 25-minute mark just to be safe.

Can you add more vegetables to this dish?
Yes, and I encourage it. Diced zucchini, sliced banana peppers, fresh spinach, or black olives all fit right in. Just keep them low-carb and you’re good to go.

Did You Make This? I Want to Hear All About It

If you tried this keto turkey pepperoni pizza casserole, please drop a comment below and tell me how it went. Did your kids love it? Did you add jalapeños? I genuinely want to know. And if you have a second, a quick recipe rating helps other families find it too. Snap a photo and tag me on social media. Nothing makes my day more than seeing your dinner table wins. You can find us on Facebook!

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