Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a delicious and satisfying dish that combines ground beef and fresh zucchini in a comforting, cheesy bake. This recipe is perfect for busy weeknights or meal prep, offering a hearty meal that the whole family will enjoy. With its low-carb profile, it’s an excellent choice for those looking for nutritious options without sacrificing flavor.
Why You’ll Love This Recipe
- Quick Preparation: This casserole can be prepared in just 15 minutes, making it ideal for busy evenings.
- Family-Friendly: The combination of beef and cheese appeals to both kids and adults alike.
- Healthy Ingredients: Packed with vegetables and lean meat, it’s a nutritious option that feels indulgent.
- Versatile Meal: Perfect as leftovers, you can easily customize it by adding your favorite vegetables or spices.
- Low-Carb Delight: A great choice for those on a low-carb diet while still being filling.
Tools and Preparation
Before diving into the cooking process, gather the essential tools needed to make this dish. Having everything ready will streamline your cooking experience.
Essential Tools and Equipment
- Large skillet
- Baking dish (8×8)
- Knife
- Cutting board
- Sieve or colander
Importance of Each Tool
- Large skillet: Essential for browning the ground beef evenly and sautéing the onions and garlic to enhance their flavors.
- Baking dish (8×8): Provides the perfect size for layering ingredients, ensuring that every bite is packed with flavor.
- Knife: A sharp knife is crucial for slicing zucchini quickly and safely.
- Sieve or colander: Helps in draining excess moisture from the zucchini, which prevents the casserole from becoming soggy.

Ingredients
For the Casserole
- 2 medium zucchini, sliced (about 2 pounds)
- 1 tbsp olive oil
- 1 small onion, diced
- 2 garlic cloves, minced
- 1 pound lean ground beef
- 2 tsp Italian seasoning
- 1/2 tsp kosher salt
- 1/2 tsp black pepper
- 1 28 ounce can diced tomatoes, drained
- 2 cups shredded mozzarella cheese
How to Make Ground Beef Zucchini Casserole
Step 1: Prepare the Zucchini
- Slice the zucchini into 1/2 rounds.
- Place the rounds in a sieve or colander over the sink or a bowl; sprinkle with salt and toss to coat.
- Let them sit for 15 minutes to draw out excess moisture.
- Rinse under cold water to remove excess salt, then pat dry with paper towels.
Step 2: Cook the Ground Beef Mixture
- Heat olive oil in a large skillet over medium-high heat.
- Add diced onions and cook until softened (about 2 minutes).
- Incorporate minced garlic followed by ground beef; break it up with a spoon as it cooks.
- Continue stirring until browned (about 5 minutes), ensuring no pink remains.
- Stir in drained diced tomatoes, Italian seasoning, kosher salt, and black pepper; remove from heat.
Step 3: Assemble the Casserole
- Preheat your oven to 350°F (175°C).
- In an 8×8 baking dish, spread half of the ground beef mixture evenly at the bottom.
- Layer half of the sliced zucchini on top of the beef mixture followed by half of the mozzarella cheese.
- Repeat these layers with the remaining ground beef mixture, zucchini slices, and cheese.
Step 4: Bake and Serve
- Bake in preheated oven for 20 to 25 minutes until cheese is melted and slightly browned on top.
- Allow casserole to rest for 10 minutes before serving to let flavors meld.
Enjoy your delicious Ground Beef Zucchini Casserole! It’s sure to become a staple in your home-cooked meals.
How to Serve Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a versatile dish that can be served in various ways to enhance your dining experience. Whether you’re looking for something simple or want to add a special touch, there are plenty of serving ideas to explore.
Pair with a Fresh Salad
- A crisp green salad with mixed greens and a tangy vinaigrette complements the richness of the casserole perfectly.
Serve with Crusty Bread
- A slice of warm, crusty bread or garlic bread is great for soaking up any extra sauce from the casserole.
Add a Dollop of Sour Cream
- Topping each serving with sour cream adds creaminess and a slight tang that balances the flavors nicely.
Include Roasted Vegetables
- Roasted seasonal vegetables on the side can add color and additional nutrients to your meal.
Offer a Side of Quinoa
- Quinoa is a protein-rich option that pairs well with the casserole, providing a hearty side without overpowering it.
Garnish with Fresh Herbs
- Sprinkle fresh parsley or basil on top before serving for an aromatic touch that brightens the dish.
How to Perfect Ground Beef Zucchini Casserole
To make sure your ground beef zucchini casserole turns out delicious every time, follow these helpful tips.
- Pre-salt zucchini – This technique draws out excess moisture, preventing the casserole from becoming watery.
- Use lean ground beef – Choosing leaner meat reduces fat and calories while still delivering flavor.
- Layer evenly – Make sure to distribute ingredients evenly for balanced flavor and texture in each bite.
- Let it rest – Allowing the casserole to sit for 10 minutes after baking helps it set and makes serving easier.
- Experiment with spices – Feel free to adjust Italian seasoning or add different herbs for personalized flavor profiles.
- Store leftovers properly – Keep any remaining casserole in an airtight container in the fridge for up to three days.
Best Side Dishes for Ground Beef Zucchini Casserole
Complement your ground beef zucchini casserole with some delightful side dishes. Here are our top picks:
- Garlic Mashed Potatoes – Creamy mashed potatoes infused with garlic offer comfort and pair wonderfully with the casserole.
- Steamed Broccoli – Lightly steamed broccoli adds color and nutrients while balancing out the richness of the dish.
- Cauliflower Rice – A low-carb alternative that absorbs flavors beautifully; simply sauté with some olive oil.
- Green Beans Almondine – Sautéed green beans topped with toasted almonds provide crunch and freshness alongside the main dish.
- Coleslaw – A refreshing coleslaw adds a crunchy texture that contrasts nicely with the softness of the casserole.
- Roasted Sweet Potatoes – Their natural sweetness complements the savory flavors of the casserole, adding depth to your meal.
- Quinoa Salad – A light quinoa salad tossed with herbs and lemon juice enhances flavor while keeping meals healthy.
- Mixed Vegetable Stir-Fry – A colorful medley of vegetables stir-fried quickly in olive oil brings vibrant flavors to your plate.
Common Mistakes to Avoid
When preparing Ground Beef Zucchini Casserole, it’s important to avoid common pitfalls that can affect the dish’s flavor and texture. Here are some mistakes to watch for:
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Over-salting the zucchini: Salting the zucchini is essential to remove moisture, but using too much salt can make the dish overly salty. Use just enough salt to coat the slices lightly.
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Not allowing zucchini to rest: Skipping the resting time after salting can lead to excess moisture in your casserole. Letting it sit for 15 minutes helps draw out water for better texture.
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Using low-quality ground beef: Choosing a leaner ground beef will enhance flavor without adding excessive grease. Opt for at least 80% lean ground beef for the best results.
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Skipping the preheating step: Not preheating your oven may result in uneven cooking. Always preheat your oven to 350°F to ensure proper baking of your casserole.
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Neglecting ingredient layering: Layering ingredients correctly is vital for even cooking and flavor distribution. Make sure you alternate layers of meat, zucchini, and cheese as instructed.
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Forgetting to let it rest: Cutting into your casserole too soon will cause it to fall apart. Allowing it to rest for 10 minutes after baking helps it set properly.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- The casserole can be kept in the fridge for up to 3 days.
Freezing Ground Beef Zucchini Casserole
- Use freezer-safe containers or wrap tightly with plastic wrap and aluminum foil.
- It can be frozen for up to 3 months; just thaw overnight before reheating.
Reheating Ground Beef Zucchini Casserole
- Oven: Preheat oven to 350°F and cover with foil until heated through, about 20-25 minutes.
- Microwave: Heat in a microwave-safe dish on medium power for about 2-3 minutes, stirring halfway through.
- Stovetop: Reheat in a skillet over medium heat, adding a splash of broth if needed to prevent sticking.
Frequently Asked Questions
Here are some common questions about preparing Ground Beef Zucchini Casserole:
Can I use ground turkey instead of beef?
Yes! Ground turkey is a great alternative that still provides plenty of protein while being lower in fat.
How do I make this recipe gluten-free?
This Ground Beef Zucchini Casserole is naturally gluten-free as none of the ingredients contain gluten. Just ensure any additional toppings or sides are also gluten-free.
What can I serve with Ground Beef Zucchini Casserole?
This dish pairs well with a side salad or steamed vegetables. You could also serve it with crusty bread for a more filling meal.
Can I add other vegetables?
Absolutely! Feel free to include bell peppers, spinach, or mushrooms for added nutrition and flavor variation.
Final Thoughts
Ground Beef Zucchini Casserole is not only delicious but also versatile and satisfying. This recipe allows for customization based on your preferences—add different vegetables or spices as desired. It’s perfect for busy weeknights or meal prep, and your family will surely enjoy every bite!
Ground Beef Zucchini Casserole
Ground Beef Zucchini Casserole is a comforting and satisfying dish that brings together lean ground beef and fresh zucchini in a deliciously cheesy bake. Perfect for busy weeknights, this easy recipe not only delivers great flavor but also packs in nutrients, making it an excellent choice for families seeking wholesome meals. The combination of juicy beef and tender zucchini layered with melted mozzarella makes this casserole irresistible. Plus, its low-carb profile caters to those looking for healthier options without compromising on taste. Enjoy a slice of this cheesy delight tonight—your family will thank you!
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: Serves approximately six people 1x
- Category: Main
- Method: Baking
- Cuisine: American
Ingredients
- 2 medium zucchini (about 2 pounds)
- 1 tbsp olive oil
- 1 small onion, diced
- 2 garlic cloves, minced
- 1 pound lean ground beef
- 2 tsp Italian seasoning
- 1/2 tsp kosher salt
- 1/2 tsp black pepper
- 1 can (28 ounces) diced tomatoes, drained
- 2 cups shredded mozzarella cheese
Instructions
- Preheat your oven to 350°F (175°C).
- Slice the zucchini into 1/2" rounds and place in a colander with a sprinkle of salt; let sit for 15 minutes to remove excess moisture.
- Heat olive oil in a large skillet over medium-high heat. Sauté onions until softened, then add garlic and ground beef; cook until browned.
- Stir in the drained diced tomatoes, Italian seasoning, salt, and pepper.
- In an 8×8 baking dish, layer half of the ground beef mixture, half of the zucchini slices, and half of the mozzarella cheese. Repeat layers.
- Bake for 20-25 minutes until cheese is melted and slightly browned on top.
Nutrition
- Serving Size: 1/6 casserole (approximately 240g)
- Calories: 320
- Sugar: 4g
- Sodium: 560mg
- Fat: 18g
- Saturated Fat: 7g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 3g
- Protein: 30g
- Cholesterol: 75mg