Keto Meatball Casserole
If you’re looking for a hearty and satisfying family meal, the Keto Meatball Casserole is the perfect choice. This dish combines flavorful low-carb meatballs with rich sauce and melted cheese, making it a delicious option for any occasion. Whether it’s a weeknight dinner or a weekend gathering, this casserole stands out with its delightful flavors and easy preparation.
Why You’ll Love This Recipe
- Easy to Prepare: With simple ingredients and straightforward steps, you’ll have dinner ready in no time.
- Flavor-Packed: The combination of turkey and Italian sausage creates a savory taste that everyone will love.
- Low Carb Delight: Perfect for those following a keto diet while still satisfying cravings for comfort food.
- Versatile Dish: Customize the casserole by adding your favorite vegetables or spices to suit your taste.
- Great for Meal Prep: Make ahead and store portions for quick meals throughout the week.
Tools and Preparation
Having the right tools makes cooking easier and more enjoyable. For this Keto Meatball Casserole, you’ll need some essential kitchen equipment.
Essential Tools and Equipment
- Casserole dish
- Mixing bowl
- Baking sheet
- Measuring cups and spoons
- Cooking spray
Importance of Each Tool
- Casserole dish: Ensures even cooking and makes serving easy.
- Mixing bowl: Provides ample space to combine all ingredients without mess.
- Baking sheet: Helpful for catching any drips during baking or broiling.

Ingredients
To make this delicious Keto Meatball Casserole, gather the following 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 (I used a two cheese pizza blend of mozzarella and provolone)
How to Make Keto Meatball Casserole
Step 1: Preheat the Oven
Preheat your oven to 400°F (200°C). Spray a casserole dish with cooking spray to prevent sticking.
Step 2: Prepare the Meatballs
In a mixing bowl, combine all the ingredients for the meatballs:
1. Add ground turkey, Italian sausage, zucchini, egg, onion, garlic, basil, and salt.
2. Mix thoroughly until well combined.
3. Form about 24 meatballs and place them in the prepared casserole dish.
Step 3: Bake the Meatballs
Bake in the preheated oven for 30 minutes or until the meatballs are cooked through. Carefully drain any excess liquid from the casserole dish.
Step 4: Add Sauce and Cheese
Top the baked meatballs with marinara sauce and sprinkle generously with mozzarella and parmesan cheese. Return to the oven for an additional 10–15 minutes or until the cheese is melted.
Step 5: Optional Broil
For an extra crispy top, broil on high for 3–4 minutes at the end. Keep a close eye on it to avoid burning.
Now you have a delicious Keto Meatball Casserole ready to be enjoyed! Serve it hot as a wholesome meal that everyone will love.
How to Serve Keto Meatball Casserole
Keto Meatball Casserole is a delicious and satisfying dish that can be served in various ways. Here are some serving suggestions that will elevate your dining experience.
With a Fresh Salad
- A crisp green salad with mixed greens, cucumbers, and cherry tomatoes pairs perfectly with the richness of the casserole.
Over Zucchini Noodles
- Spiralized zucchini noodles provide a low-carb alternative to pasta, soaking up the flavors of the meatball casserole beautifully.
Topped with Fresh Herbs
- Garnishing with fresh basil or parsley adds a burst of color and freshness, enhancing the overall flavor profile.
With Cauliflower Rice
- Serving the casserole over cauliflower rice makes for a hearty yet low-carb meal that complements the meatballs nicely.
As a Standalone Dish
- Enjoy it on its own for a simple and satisfying meal. The combination of meatballs and cheese is filling enough without any sides.
How to Perfect Keto Meatball Casserole
To ensure your Keto Meatball Casserole turns out perfectly every time, consider these helpful tips.
- Choose Quality Ingredients: Use fresh herbs and high-quality meats to enhance flavor.
- Don’t Overmix: When forming the meatballs, mix just until combined to keep them tender.
- Monitor Cooking Time: Keep an eye on the meatballs while baking; cooking times may vary based on your oven.
- Experiment with Cheese Blends: Try different cheese combinations for unique flavors and textures.
- Serve Hot: Allow it to rest for a few minutes after baking before serving for better slicing.
- Store Properly: Refrigerate leftovers in an airtight container for up to 4 days to maintain freshness.
Best Side Dishes for Keto Meatball Casserole
Pairing side dishes with your Keto Meatball Casserole can enhance your meal. Here are some excellent options:
- Garlic Mashed Cauliflower – Creamy and flavorful, this low-carb alternative to mashed potatoes is perfect alongside your casserole.
- Roasted Brussels Sprouts – Caramelized Brussels sprouts add a crunchy texture that complements the soft meatballs beautifully.
- Broccoli Salad – A refreshing broccoli salad with nuts and ranch dressing provides a nice crunch and balance of flavors.
- Stuffed Bell Peppers – Filled with vegetables and cheese, these peppers make for a colorful side dish that’s also filling.
- Cucumber Salad – A light cucumber salad dressed in vinegar offers a refreshing contrast to the rich casserole.
- Spinach Sauté – Sautéed spinach with garlic is not only quick but also adds nutrients to your meal without many carbs.
Common Mistakes to Avoid
When making Keto Meatball Casserole, it’s easy to make mistakes that can affect the flavor and texture of your dish. Here are some common pitfalls to avoid.
- Skipping the seasoning: Many people forget to season their meatballs adequately. Always mix in dried herbs and spices to enhance flavor.
- Using the wrong meat: Choosing a lean meat like turkey is great, but don’t skip the Italian sausage alternative. It adds essential flavor and richness.
- Not draining excess liquid: A common mistake is leaving too much cooking liquid in the casserole. Be sure to drain it before adding sauce and cheese for a better texture.
- Overcooking or undercooking: Cooking times can vary based on oven accuracy. Always check that your meatballs are fully cooked through to ensure safety.
- Ignoring cheese options: Using only mozzarella limits flavors. Experiment with various cheese blends for a more complex taste and texture.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container for up to 3 days.
- Allow the casserole to cool completely before sealing for optimal freshness.
Freezing Keto Meatball Casserole
- Freeze in an airtight container for up to 3 months.
- Consider cutting into portions before freezing for easier reheating.
Reheating Keto Meatball Casserole
- Oven: Preheat to 350°F (175°C) and cover with foil for even reheating, about 20-25 minutes.
- Microwave: Use a microwave-safe dish, cover, and heat in 1-minute intervals until hot throughout.
- Stovetop: Place in a skillet over low heat, stirring occasionally until warmed through.
Frequently Asked Questions
Here are some frequently asked questions about making Keto Meatball Casserole.
What can I substitute if I don’t have ground turkey?
You can use ground chicken or beef as alternatives. Both will work well with the recipe’s flavors.
Can I make this casserole ahead of time?
Yes! You can prepare the meatballs and sauce ahead of time, then bake them when you’re ready to serve.
Is this Keto Meatball Casserole freezer-friendly?
Absolutely! This casserole freezes well; just store it in an airtight container for future meals.
How can I customize my Keto Meatball Casserole?
Feel free to add vegetables like spinach or bell peppers for extra nutrition. You can also try different cheese blends!
Final Thoughts
Keto Meatball Casserole is a delicious and satisfying meal perfect for family dinners. Its versatility allows you to customize ingredients based on your preferences while maintaining low-carb integrity. Give this recipe a try and enjoy the rich flavors!

Keto Meatball Casserole
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: Serves about six people 1x
- Category: Main
- Method: Baking
- Cuisine: Italian
Description
Keto Meatball Casserole is the ultimate comfort food that combines hearty meatballs with a rich marinara sauce and a gooey cheese topping. This low-carb dish is perfect for busy weeknights or gatherings, as it offers a satisfying meal that the whole family will enjoy. With its simple preparation and customizable ingredients, you’ll have a delicious casserole ready to be devoured in no time. Plus, it’s an excellent option for meal prep, ensuring you have quick and nutritious meals on hand throughout the week.
Ingredients
- 1 lb ground turkey
- 1 lb Italian sausage alternative (e.g., chicken 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
- 1 cup shredded mozzarella cheese
- 1/3 cup grated or shredded parmesan cheese
- 8 oz shredded cheese blend (mozzarella and provolone)
Instructions
- Preheat your oven to 400°F (200°C) and spray a casserole dish with cooking spray.
- In a mixing bowl, combine ground turkey, Italian sausage alternative, zucchini, egg, onion, garlic, basil, and salt. Mix until well combined.
- Form approximately 24 meatballs and place them in the casserole dish.
- Bake for about 30 minutes until cooked through; drain any excess liquid.
- Top with marinara sauce and sprinkle with mozzarella and parmesan cheese. Bake for an additional 10–15 minutes until the cheese melts.
- For a crispy top, broil on high for an additional 3–4 minutes.
Nutrition
- Serving Size: 1 serving
- Calories: 360
- Sugar: 3g
- Sodium: 800mg
- Fat: 22g
- Saturated Fat: 9g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 2g
- Protein: 32g
- Cholesterol: 120mg