Keto Meatball Casserole
If you’re looking for a comforting dish that fits perfectly into your low-carb lifestyle, look no further than this Keto Meatball Casserole. This recipe combines juicy meatballs made from ground turkey and Italian sausage, all covered in marinara sauce and gooey cheese. It’s ideal for family dinners or meal prep for the week, ensuring you always have a delicious option on hand. The delightful flavors and textures make this casserole a standout dish that everyone will enjoy.
Why You’ll Love This Recipe
- Flavorful Ingredients – The combination of turkey and Italian sausage creates a savory depth that’s hard to resist.
- Easy Preparation – With just a few simple steps, you can have a hearty meal ready in under an hour.
- Low Carb Delight – Perfect for those on a keto diet, this casserole is low in carbs but high in protein.
- Versatile Meal – Great for dinner, lunch leftovers, or even serve it at gatherings; everyone will love it.
- Cheesy Goodness – Topped with layers of melted cheese, this dish satisfies cheesy cravings without the guilt.
Tools and Preparation
To make this Keto Meatball Casserole smoothly, you’ll need some essential tools. Having the right equipment makes cooking easier and more enjoyable.
Essential Tools and Equipment
- Casserole dish
- Mixing bowl
- Baking sheet
- Measuring cups and spoons
Importance of Each Tool
- Casserole dish – Ideal for baking the meatballs and holding all the delicious ingredients together.
- Mixing bowl – A must-have for combining the meatball ingredients evenly before cooking.
- Baking sheet – Useful for draining excess liquid after baking the meatballs to keep them from getting soggy.

Ingredients
To prepare your Keto Meatball Casserole, gather these ingredients:
For the Meatballs
- 1 lb ground turkey
- 1 lb Italian sausage
- 1 shredded zucchini (about 1 cup)
- 1 egg
- 2 tsp dried minced onion
- 2 tsp dried minced garlic
- 2 tsp dried basil
- 1 tsp salt
For Topping
- 1 cup marinara sauce
- 1 cup shredded mozzarella
- 1/3 cup grated or shredded parmesan
- 8 oz shredded cheese (a blend of mozzarella and provolone works great)
How to Make Keto Meatball Casserole
Step 1: Preheat the Oven
Preheat your oven to 400°F (200°C). While it’s heating up, spray a casserole dish with cooking spray to prevent sticking.
Step 2: Prepare the Meatballs
In a large mixing bowl, combine all the meatball ingredients thoroughly.
1. Mix until well blended.
2. Form about 24 meatballs from the mixture.
3. Place them in your prepared casserole dish.
Step 3: Bake the Meatballs
Bake in the preheated oven for 30 minutes or until the meatballs are fully cooked.
1. Check their internal temperature; it should reach at least 165°F (74°C).
2. Carefully drain any excess cooking liquid from the casserole dish.
Step 4: Add Sauce and Cheese
Pour marinara sauce over the baked meatballs. Then sprinkle with mozzarella and parmesan cheese on top.
1. Return to oven and bake for an additional 10-15 minutes until the cheese is melted and bubbly.
Step 5: Optional Broil
For an extra touch of flavor, broil your casserole for about 3-4 minutes at the end to toast the cheese lightly.
– Keep a close watch to avoid burning.
Now you have a delicious Keto Meatball Casserole ready to be enjoyed! Serve it warm and watch everyone go back for seconds.
How to Serve Keto Meatball Casserole
Keto Meatball Casserole is a versatile dish that can be served in various ways to suit your family’s taste. Whether you want to keep it simple or fancy it up, here are some serving suggestions to elevate your meal.
With a Fresh Salad
- A crisp salad adds freshness to the dish. Consider a mix of greens, cherry tomatoes, and cucumbers with olive oil and vinegar dressing.
Over Zucchini Noodles
- For a low-carb option, serve the casserole over spiralized zucchini noodles. This adds texture and makes for a light yet filling meal.
With Cauliflower Rice
- Cauliflower rice is another great low-carb side that pairs well. It absorbs the meatball sauce beautifully and adds extra nutrients.
Topped with Fresh Herbs
- Adding fresh basil or parsley on top enhances flavor and presentation. Simply sprinkle herbs right before serving for a vibrant touch.
In Lettuce Wraps
- For a fun twist, scoop the meatballs into large lettuce leaves. This creates a hand-held meal that’s perfect for casual dining.
With Creamy Mashed Cauliflower
- Substitute regular mashed potatoes with creamy mashed cauliflower for a satisfying side that keeps it keto-friendly.
How to Perfect Keto Meatball Casserole
To ensure your Keto Meatball Casserole turns out perfectly every time, follow these helpful tips.
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Use Lean Ground Turkey: Opting for lean ground turkey keeps the dish lighter without sacrificing flavor.
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Incorporate Vegetables: Adding shredded zucchini not only boosts nutrition but also helps keep the meatballs moist.
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Don’t Skip Browning: For extra flavor, sear the meatballs in a skillet before baking. This adds depth and enhances the overall taste.
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Experiment with Cheese: While mozzarella is classic, try adding different cheeses like gouda or cheddar for unique flavors.
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Adjust Seasoning: Feel free to tweak spices according to your preference; garlic powder or Italian seasoning can add an exciting twist.
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Let it Rest: Allow the casserole to sit for a few minutes after baking. This helps the flavors meld and makes serving easier.
Best Side Dishes for Keto Meatball Casserole
Pairing your Keto Meatball Casserole with complementary side dishes can enhance your dining experience. Here’s a selection of delicious choices.
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Garlic Green Beans: Sautéed green beans with garlic provide a crunchy contrast to the meatballs’ softness.
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Roasted Brussels Sprouts: Roasting Brussels sprouts brings out their natural sweetness, adding depth to your meal.
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Creamy Spinach Salad: A spinach salad with avocado and nuts offers creaminess and healthy fats, balancing the dish perfectly.
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Stuffed Bell Peppers: Fill bell peppers with cheese and herbs for an additional veggie-packed option alongside the casserole.
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Broccoli with Cheese Sauce: Steamed broccoli drizzled with cheese sauce makes for an indulgent yet nutritious side.
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Cabbage Slaw: A tangy cabbage slaw adds crunch and freshness that complements the richness of the casserole.
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Zucchini Chips: Baked zucchini chips serve as a crunchy, low-carb snack that pairs well with each bite of meatball casserole.
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Spaghetti Squash Medley: Serve roasted spaghetti squash mixed with olive oil and herbs as an alternative base for your casserole.
Common Mistakes to Avoid
When preparing your Keto Meatball Casserole, watch out for these common mistakes.
- Skipping the Meatball Mixing Step: Not mixing the ingredients thoroughly can lead to uneven flavor and texture in your meatballs. Ensure all ingredients are well combined for the best results.
- Overbaking the Meatballs: Baking them too long can result in dry meatballs. Keep an eye on the cooking time and check for doneness at 30 minutes.
- Using Low-Quality Marinara Sauce: A bland sauce can diminish the overall flavor of your casserole. Opt for a high-quality marinara that complements the meatballs.
- Neglecting to Drain Excess Liquid: Not draining the cooking liquid may make your casserole watery. Carefully drain it before adding sauce and cheese for a perfect consistency.
- Not Preheating the Oven: Baking in a cold oven can affect cooking times and results. Always preheat your oven to ensure even cooking.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- Consume within 3-4 days for best quality.
Freezing Keto Meatball Casserole
- Freeze in airtight containers or freezer bags.
- Best if consumed within 2-3 months.
Reheating Keto Meatball Casserole
- Oven: Preheat to 350°F (175°C) and heat covered for about 20 minutes or until warm.
- Microwave: Heat in short intervals, stirring in between until heated through.
- Stovetop: Warm in a pan over medium heat, stirring occasionally until hot.
Frequently Asked Questions
Here are some common questions about making Keto Meatball Casserole.
Can I use different types of meat?
Yes! You can substitute ground beef, lamb, or chicken for a different flavor profile while maintaining low carbs.
How do I make this dish dairy-free?
To keep it dairy-free, use plant-based cheeses or skip the cheese altogether while ensuring you still have flavorful sauces and seasonings.
What are good side dishes for Keto Meatball Casserole?
Pair it with a fresh salad or steamed vegetables to complement your meal without adding carbs.
Can I prepare this casserole ahead of time?
Absolutely! You can assemble it ahead of time and refrigerate it until you’re ready to bake. Just be mindful of slightly adjusting baking times if it’s cold from the fridge.
Final Thoughts
The Keto Meatball Casserole is an exciting dish that combines rich flavors with low-carb goodness. It’s versatile enough to fit various dietary preferences while remaining satisfying. Feel free to customize ingredients according to your taste—add veggies or switch up cheeses for a personal touch!
Keto Meatball Casserole
Savor the comforting flavors of this Keto Meatball Casserole, a perfect dish for your low-carb lifestyle. Combining juicy ground turkey and beef sausage, this casserole is bathed in rich marinara sauce and topped with layers of gooey cheese, making it an irresistible delight for family dinners or meal prep.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: Serves approximately eight people 1x
- Category: Main
- Method: Baking
- Cuisine: Italian
Ingredients
- 1 lb ground turkey
- 1 lb beef sausage
- 1 shredded zucchini (about 1 cup)
- 1 egg
- 2 tsp dried minced onion
- 2 tsp dried minced garlic
- 2 tsp dried basil
- 1 tsp salt
- 1 cup marinara sauce
- 2 cups shredded mozzarella cheese
Instructions
- Preheat oven to 400°F (200°C). Grease a casserole dish.
- In a large bowl, mix ground turkey, sausage, zucchini, egg, onion, garlic, basil, and salt until combined. Form into about 24 meatballs.
- Place meatballs in the casserole dish and bake for 30 minutes until cooked through (internal temperature should reach at least 165°F/74°C). Drain excess liquid.
- Pour marinara sauce over meatballs and sprinkle with mozzarella cheese. Return to the oven for an additional 10-15 minutes until cheese is melted and bubbly.
- For extra flavor, broil for an additional 3-4 minutes if desired.
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 3g
- Sodium: 600mg
- Fat: 22g
- Saturated Fat: 9g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 7g
- Fiber: 2g
- Protein: 30g
- Cholesterol: 90mg