Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a delightful dish that brings together the rich flavors of ground beef, fresh zucchini, and melty cheese. This comforting meal is not only perfect for family dinners but also ideal for meal prepping during busy weeks. With its layers of tomatoes and cheese, this casserole stands out as both a hearty option and a low-carb favorite that everyone will enjoy.
Why You’ll Love This Recipe
- Quick to Prepare: With a total time of just 40 minutes, this dish is perfect for weeknight dinners.
- Family-Friendly: Packed with flavor and nutrients, it’s a sure hit among kids and adults alike.
- Low-Carb Option: This casserole keeps it light while still being filling, making it suitable for various dietary preferences.
- Versatile Ingredients: You can easily swap in your favorite vegetables or seasonings to customize the dish.
- Make Ahead Friendly: It stores well in the fridge or freezer, making it great for meal prep.
Tools and Preparation
To create your ground beef zucchini casserole efficiently, certain tools will make your cooking experience smoother.
Essential Tools and Equipment
- Skillet
- Baking dish (8×8)
- Sieve or colander
- Knife and cutting board
Importance of Each Tool
- Skillet: Ideal for browning ground beef evenly while sautéing onions and garlic.
- Baking dish: A sturdy baking dish ensures even cooking and easy serving.
- Sieve or colander: Helps to remove excess moisture from the zucchini, preventing a watery casserole.

Ingredients
For this delicious Ground Beef Zucchini Casserole, gather the following ingredients:
Vegetables
- 2 medium zucchini, sliced (about 2 pounds)
- 1 small onion, diced
- 2 garlic cloves, minced
Meat
- 1 pound lean ground beef
Seasonings & Others
- 1 tbsp olive oil
- 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 them in a sieve or colander over the sink or bowl.
- Sprinkle with salt and toss to coat.
- Allow to sit for 15 minutes to draw out excess moisture.
- Rinse well under cold water to remove excess salt. Pat dry with paper towels.
Step 2: Cook the 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 and lean ground beef; break up the meat with a spoon.
- Cook until browned with no trace of pink, about 5 minutes.
- Add drained diced tomatoes, Italian seasoning, kosher salt, and black pepper; stir until well combined.
Step 3: Assemble the Casserole
- Preheat oven to 350°F (175°C).
- In an 8×8 baking dish, spread half of the beef mixture on the bottom.
- Layer half of the zucchini slices over the meat mixture followed by half of the shredded mozzarella cheese.
- Repeat these layers with the remaining ingredients.
Step 4: Bake
- Place the baking dish in the preheated oven.
- Bake for 20 to 25 minutes or until cheese is melted and lightly browned.
- Allow casserole to rest for 10 minutes before serving.
Enjoy your hearty Ground Beef Zucchini Casserole as a comforting meal that is sure to please!
How to Serve Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a versatile dish that can be enjoyed in various ways. Whether you’re serving it for dinner or meal prepping for the week, here are some creative ideas to elevate your dining experience.
Family Style
- Serve the casserole straight from the baking dish for a casual family meal. This encourages everyone to help themselves and enjoy the dish together.
With a Fresh Salad
- Pair the casserole with a simple green salad dressed with olive oil and vinegar. This adds freshness and balances the rich flavors of the casserole.
As Leftovers
- Enjoy the leftovers as a quick lunch option. Simply reheat in the microwave or oven for a satisfying meal on busy days.
With Garlic Bread
- Serve with slices of garlic bread to soak up any delicious juices from the casserole. This adds an extra layer of flavor and crunch.
Topped with Avocado
- Add sliced avocado on top just before serving. The creaminess complements the dish beautifully and adds healthy fats.
How to Perfect Ground Beef Zucchini Casserole
Achieving the perfect ground beef zucchini casserole requires attention to detail. Here are some tips to ensure your dish turns out great every time.
- Use fresh ingredients: Always opt for fresh zucchini and high-quality ground beef for the best flavor and texture.
- Layer carefully: Make sure to layer evenly in your baking dish for consistent cooking and melting of cheese.
- Avoid excess moisture: Salting the zucchini beforehand helps draw out moisture, preventing a watery casserole.
- Let it rest: Allowing the casserole to rest after baking helps it set, making it easier to slice and serve.
- Experiment with spices: Feel free to add additional spices or herbs, such as red pepper flakes or fresh basil, for extra flavor.
Best Side Dishes for Ground Beef Zucchini Casserole
Complement your ground beef zucchini casserole with these delightful side dishes. Each pairing enhances your meal while adding variety to your plate.
-
Garlic Mashed Potatoes
Creamy mashed potatoes infused with garlic provide a comforting base that pairs well with the casserole. -
Steamed Broccoli
Lightly steamed broccoli offers bright color and nutrients, balancing the richness of the casserole. -
Cauliflower Rice
A low-carb alternative to traditional rice, cauliflower rice absorbs flavors wonderfully when served alongside. -
Roasted Brussels Sprouts
Crispy roasted Brussels sprouts add texture and earthy flavors that complement the dish perfectly. -
Mixed Green Salad
A refreshing mixed green salad topped with cherry tomatoes and cucumbers provides a crisp contrast to the warm casserole. -
Quinoa Pilaf
Fluffy quinoa pilaf seasoned with herbs serves as a nutritious side that enhances your meal’s health benefits. -
Coleslaw
A tangy coleslaw adds crunch and brightness, making it a great accompaniment on warm nights. -
Baked Sweet Potatoes
The natural sweetness of baked sweet potatoes pairs nicely with savory dishes like ground beef zucchini casserole.
Common Mistakes to Avoid
When preparing your Ground Beef Zucchini Casserole, avoid these common pitfalls to ensure the best results.
- Bold seasoning mistakes: Not using enough seasoning can make your casserole bland. Be sure to taste and adjust the Italian seasoning, salt, and pepper as needed.
- Bold not salting zucchini: Skipping the salting step can lead to a watery casserole. Always salt your zucchini and let it sit to draw out excess moisture.
- Bold overcrowding the pan: Adding too much zucchini or beef at once can result in uneven cooking. Cook in batches if necessary to ensure even browning.
- Bold ignoring resting time: Cutting into the casserole immediately after baking can cause it to fall apart. Let it rest for 10 minutes for better serving.
- Bold skipping cheese layers: Omitting layers of cheese will reduce flavor and creaminess. Make sure to layer generously for that delicious melty goodness.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Ground Beef Zucchini Casserole in an airtight container.
- It can be kept in the refrigerator for up to 3 days.
Freezing Ground Beef Zucchini Casserole
- Wrap the casserole tightly in plastic wrap or aluminum foil.
- Freeze it for up to 2 months for best quality.
Reheating Ground Beef Zucchini Casserole
- Oven: Preheat your oven to 350°F (175°C) and cover with foil. Bake for about 20 minutes until heated through.
- Microwave: Place a portion on a microwave-safe plate and heat on high for 2-3 minutes, checking frequently.
- Stovetop: Reheat 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 meats in this Ground Beef Zucchini Casserole?
Yes! You can substitute ground turkey or chicken for ground beef, depending on your preference.
How do I make my Ground Beef Zucchini Casserole spicier?
To add spice, consider incorporating red pepper flakes or diced jalapeños into the meat mixture.
Can I add more vegetables to my Ground Beef Zucchini Casserole?
Absolutely! Bell peppers, mushrooms, or spinach are great additions that complement the flavor and nutrition of the dish.
What should I serve with my Ground Beef Zucchini Casserole?
This casserole pairs well with a simple salad or steamed vegetables for a complete meal.
Final Thoughts
Ground Beef Zucchini Casserole is versatile, satisfying, and perfect for busy weeknights. You can easily customize it by adding different veggies or spices. Give this recipe a try; your family will thank you!
Ground Beef Zucchini Casserole
Ground Beef Zucchini Casserole is a comforting and satisfying dish that beautifully combines lean ground beef, fresh zucchini, and gooey mozzarella cheese. This hearty casserole is perfect for family dinners or meal prepping, offering a delicious way to enjoy a low-carb meal without sacrificing flavor. With layers of seasoned beef and tender zucchini topped with melted cheese, it’s sure to please everyone at the table. Plus, it can be customized with your favorite vegetables or spices, making it a versatile option for any night of the week.
- 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
- 1 small onion
- 2 garlic cloves
- 1 pound lean ground beef
- 1 tbsp olive oil
- 2 tsp Italian seasoning
- 28 oz canned diced tomatoes
- 2 cups shredded mozzarella cheese
Instructions
- Preheat oven to 350°F (175°C).
- Slice zucchini into rounds, salt them, and let sit in a colander for 15 minutes to draw out moisture. Rinse and pat dry.
- Heat olive oil in a skillet over medium-high heat. Sauté onions for 2 minutes; add garlic and ground beef, cooking until browned.
- Stir in drained tomatoes, Italian seasoning, salt, and pepper until combined.
- In an 8×8 baking dish, layer half of the beef mixture, followed by half of the zucchini and half of the cheese. Repeat layers.
- Bake for 20-25 minutes until the cheese is melted and lightly browned. Let rest for 10 minutes before serving.
Nutrition
- Serving Size: 1/6 casserole (approx. 250g)
- Calories: 320
- Sugar: 5g
- Sodium: 450mg
- Fat: 20g
- Saturated Fat: 8g
- Unsaturated Fat: 11g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 3g
- Protein: 24g
- Cholesterol: 80mg
