Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a delightful dish that perfectly combines savory ground beef and fresh zucchini, layered with tomatoes and gooey cheese. This recipe not only satisfies your cravings but also serves as an excellent low-carb option for busy weeknights or meal prep. It’s a dish that brings families together at the dinner table, ensuring both kids and adults will leave satisfied.
Why You’ll Love This Recipe
- Easy to Prepare: With simple ingredients and straightforward instructions, this casserole comes together quickly, making it perfect for any night.
- Flavorful Layers: The combination of ground beef, zucchini, and melted cheese creates a rich flavor profile that will please even the pickiest eaters.
- Low-Carb Goodness: This dish is not only hearty but also low in carbs, making it suitable for those following a keto or low-carb lifestyle.
- Versatile Ingredients: You can easily customize the recipe by adding your favorite vegetables or swapping cheeses to suit your family’s taste.
- Great for Meal Prep: This casserole keeps well in the fridge, making it ideal for preparing ahead of time and enjoying throughout the week.

Tools and Preparation
To make the ground beef zucchini casserole smoothly, you’ll need a few essential tools. Having these handy will streamline your cooking process.
Essential Tools and Equipment
- Skillet
- Baking dish (8×8)
- Colander or sieve
- Cutting board
- Knife
Importance of Each Tool
- Skillet: A good skillet ensures even cooking of the ground beef and helps develop flavors as you sauté onions and garlic.
- Baking Dish: An 8×8 dish is perfect for layering all the ingredients neatly while allowing for even baking.
- Colander: This tool is crucial for draining excess moisture from the zucchini, preventing your 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 Zucchini
- Slice the zucchini into 1/2 rounds. Place them in a sieve or colander over the sink or a bowl.
- Sprinkle with salt, tossing to coat evenly.
- Allow the salted zucchini to sit for 15 minutes to draw out excess moisture.
Step 2: Rinse Zucchini
- Rinse the salted zucchini under cold water to remove excess salt.
- Pat dry with paper towels.
Step 3: Cook Beef Mixture
- Heat olive oil in a large skillet over medium-high heat.
- Add diced onions and cook until they begin to soften, about 2 minutes.
- Stir in minced garlic followed by lean ground beef; break up meat with a spoon.
- Cook until browned with no trace of pink, about 5 minutes.
Step 4: Combine Ingredients
- Stir in drained diced tomatoes, Italian seasoning, kosher salt, and black pepper; remove from heat.
Step 5: Preheat Oven
Preheat your oven to 350°F (175°C).
Step 6: Layer Casserole
- In an 8×8 baking dish, spread half of the ground beef mixture on the bottom.
- Cover with half of the zucchini slices followed by half of the shredded mozzarella cheese.
- Repeat layers with remaining meat mixture, zucchini slices, and cheese.
Step 7: Bake
Bake in preheated oven for 20 to 25 minutes until cheese is melted and beginning to brown.
Step 8: Rest Before Serving
Allow casserole to rest for about 10 minutes before serving so flavors meld beautifully.
Enjoy this comforting ground beef zucchini casserole any night of the week!
How to Serve Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a versatile dish that can be served in various ways. Whether you’re enjoying it as a family dinner or serving guests, these suggestions will elevate your meal experience.
Pair with a Fresh Salad
- Garden Salad: A mix of greens, tomatoes, cucumbers, and a light vinaigrette will add freshness to your meal.
- Caesar Salad: The creamy dressing and crunchy croutons complement the casserole’s flavors beautifully.
Offer Garlic Bread
- Traditional Garlic Bread: Toasted bread topped with garlic butter is perfect for soaking up any leftover sauce.
- Cheesy Garlic Knots: These are fun to eat and pair well with the cheesy goodness of the casserole.
Add a Side of Vegetables
- Steamed Broccoli: Lightly steamed broccoli provides a nutritious balance and adds vibrant color to your plate.
- Roasted Brussels Sprouts: Tossed with olive oil and seasoning, they bring a delightful crunch alongside the casserole.
How to Perfect Ground Beef Zucchini Casserole
Creating the ideal ground beef zucchini casserole takes some attention to detail. Here are some tips to ensure your dish turns out perfectly every time.
- Use Fresh Ingredients: Fresh zucchini and high-quality ground beef enhance the flavor of your casserole significantly.
- Layer Properly: Alternate layers of meat, zucchini, and cheese evenly for consistent flavor in every bite.
- Don’t Skip Salting Zucchini: This step helps remove excess moisture, preventing your casserole from becoming watery.
- Experiment with Cheese: Try mixing different cheeses like cheddar or Parmesan for added flavor depth.
- Rest Before Serving: Allowing the casserole to sit for 10 minutes after baking helps it set and makes serving easier.
Best Side Dishes for Ground Beef Zucchini Casserole
A delicious ground beef zucchini casserole pairs well with several side dishes that enhance its flavors and texture. Here are some excellent choices:
- Garlic Mashed Potatoes: Creamy potatoes with garlic will provide a comforting side that complements the casserole.
- Coleslaw: A tangy coleslaw adds crunch and acidity, balancing the richness of the casserole.
- Quinoa Salad: A light quinoa salad with vegetables offers a healthy alternative that pairs nicely.
- Sautéed Spinach: Quick sautéed spinach adds both nutrients and color to your meal.
- Corn on the Cob: Sweet corn brings a delightful burst of flavor that contrasts well with savory dishes.
- Baked Sweet Potatoes: Their natural sweetness pairs wonderfully with the savory elements of the casserole.
Common Mistakes to Avoid
Making a ground beef zucchini casserole can be easy, but there are common pitfalls to watch out for.
- Not Salting the Zucchini Properly: Failing to salt the zucchini can result in a watery casserole. Always salt and let it sit to draw out excess moisture.
- Using High-Fat Ground Beef: Using fatty ground beef can make your casserole greasy. Opt for lean ground beef for a healthier dish.
- Skipping the Resting Time: Cutting into the casserole immediately after baking can cause it to fall apart. Let it rest for at least 10 minutes before serving.
- Overcooking the Cheese: Baking too long can lead to burnt cheese. Keep an eye on your casserole during the last few minutes of baking.
- Not Layering Evenly: Uneven layers can affect cooking and flavor distribution. Ensure you spread each layer evenly for the best results.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- They will last up to 3-4 days in the refrigerator.
Freezing Ground Beef Zucchini Casserole
- Use a freezer-safe container or wrap tightly with plastic wrap and aluminum foil.
- It can be frozen for up to 2 months for best quality.
Reheating Ground Beef Zucchini Casserole
- Oven: Preheat to 350°F (175°C) and bake covered for about 20 minutes, or until heated through.
- Microwave: Place in a microwave-safe dish, cover, and heat on medium power for 3-5 minutes, checking often.
- Stovetop: Heat in a skillet over medium heat, stirring occasionally until warmed through.
Frequently Asked Questions
Here are some common questions about making Ground Beef Zucchini Casserole.
Can I use other vegetables in Ground Beef Zucchini Casserole?
Yes! Feel free to add bell peppers, mushrooms, or spinach for extra nutrition and flavor.
How do I make this dish vegetarian?
You can substitute ground beef with lentils or a plant-based meat alternative for a vegetarian version of this casserole.
Can Ground Beef Zucchini Casserole be made ahead of time?
Absolutely! You can prepare it a day in advance and store it in the refrigerator until ready to bake.
What should I serve with Ground Beef Zucchini Casserole?
A simple side salad or garlic bread pairs perfectly with this hearty dish.
Final Thoughts
Ground beef zucchini casserole is not only delicious but also versatile. Whether you’re busy on weeknights or planning meals ahead, this recipe is perfect for everyone. Feel free to customize it with your favorite ingredients like different cheeses or spices for added flair!
Ground Beef Zucchini Casserole
Ground Beef Zucchini Casserole is a comforting and satisfying dish that combines savory ground beef with fresh zucchini, juicy tomatoes, and gooey melted cheese. Perfect for busy weeknights or meal prep, this low-carb recipe will delight both kids and adults alike. The layered flavors create a rich, savory experience that brings families together at the dinner table. Easy to make and customizable with your favorite ingredients, this casserole is sure to become a go-to dish in your home.
- Prep Time: 20 minutes
- Cook Time: 25 minutes
- Total Time: 45 minutes
- Yield: Serves approximately six people 1x
- Category: Dinner
- Method: Baking
- Cuisine: American
Ingredients
- 2 medium zucchini (about 2 pounds), sliced
- 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 zucchini into rounds and sprinkle with salt; let sit for 15 minutes to draw out moisture.
- Rinse and pat zucchini dry.
- In a skillet, heat olive oil over medium-high heat; sauté onions until softened, then add garlic and ground beef, cooking until browned.
- Stir in drained tomatoes, Italian seasoning, salt, and pepper; remove from heat.
- In an 8×8 baking dish, layer half of the beef mixture, half of the zucchini slices, and half of the cheese; repeat layers.
- Bake for 20-25 minutes until cheese is melted and golden.
- Let it rest for about 10 minutes before serving.
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 4g
- Sodium: 720mg
- Fat: 20g
- Saturated Fat: 8g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 11g
- Fiber: 3g
- Protein: 27g
- Cholesterol: 75mg