Ground Beef Zucchini Casserole
Ground beef zucchini casserole is a delightful dish that brings together the savory flavors of ground beef and fresh zucchini, layered with tomatoes and melted cheese. This recipe is perfect for busy weeknights and meal prep, offering a nutritious, low-carb option that the whole family will adore. Enjoy this hearty casserole for dinner or serve it at gatherings; its appealing taste and comforting texture make it suitable for any occasion.
Why You’ll Love This Recipe
- Easy to Prepare: With simple ingredients and straightforward steps, you can whip up this casserole in no time.
- Healthy Ingredients: Packed with zucchini and lean ground beef, this dish is both nutritious and filling.
- Family-Friendly: It’s a hit among kids and adults alike, making it a great choice for family dinners.
- Versatile Meal: Perfect for any occasion—weeknight dinners or special gatherings.
- Leftover Friendly: This casserole stays delicious even as leftovers, so you can enjoy it again the next day.
Tools and Preparation
Having the right tools makes cooking easier. Below are essential tools to gather before you start.
Essential Tools and Equipment
- Large skillet
- Baking dish (8×8)
- Sieve or colander
- Knife
- Cutting board
Importance of Each Tool
- Large skillet: Essential for browning the ground beef and sautéing vegetables evenly.
- Baking dish: A sturdy 8×8 dish is perfect for layering your casserole, ensuring even cooking.
- Sieve or colander: Helps to draw moisture from zucchini, preventing a soggy casserole.

Ingredients
To make the flavorful ground beef zucchini casserole, you’ll need the following 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 and sprinkle with salt. Toss to coat evenly.
- Allow the salted zucchini to sit for 15 minutes to draw out excess moisture.
- Rinse well under cold water to remove the excess salt and 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, breaking it up with a spoon. Cook until browned with no trace of pink, about 5 minutes.
- Mix in drained diced tomatoes, Italian seasoning, kosher salt, and black pepper. Remove from heat.
Step 3: Layer the Casserole
- Preheat your oven to 350°F (175°C).
- In an 8×8 baking dish, spread half of the ground beef mixture evenly on the bottom.
- Cover with half of the zucchini slices followed by half of the mozzarella cheese.
- Repeat these layers with the remaining ground beef mixture, zucchini slices, and cheese.
Step 4: Bake
- Place your assembled casserole in the preheated oven.
- Bake for 20 to 25 minutes until the cheese is melted and beginning to brown.
- Once done, allow it to rest for 10 minutes before serving.
Enjoy your delicious Ground Beef Zucchini Casserole!
How to Serve Ground Beef Zucchini Casserole
Serving ground beef zucchini casserole can elevate your dining experience and make it even more enjoyable. Here are some creative suggestions to enhance this hearty dish.
Pair with a Fresh Salad
- Garden Salad: A mix of leafy greens, cherry tomatoes, and cucumbers dressed in vinaigrette adds freshness.
- Caesar Salad: Crisp romaine, croutons, and a creamy dressing complement the savory casserole.
Add Some Bread
- Garlic Bread: Warm, buttery garlic bread is perfect for soaking up any extra sauce.
- Dinner Rolls: Soft rolls can be served warm alongside the casserole for a comforting touch.
Complement with Vegetables
- Steamed Broccoli: Lightly steamed broccoli adds color and nutrition without overwhelming the meal.
- Roasted Asparagus: Tossed with olive oil and roasted until tender, asparagus brings a delicious crunch.
How to Perfect Ground Beef Zucchini Casserole
Perfecting your ground beef zucchini casserole is all about attention to detail. Here are some tips to ensure it turns out just right.
- Choose Lean Meat: Using lean ground beef minimizes excess grease, resulting in a healthier dish.
- Salt the Zucchini: Salting the zucchini before cooking helps remove moisture, preventing a soggy casserole.
- Layer Ingredients Well: Ensure even distribution of ingredients for balanced flavor in every bite.
- Cover While Baking: Covering the dish for part of the baking time helps steam the layers while allowing cheese to brown later.
- Let It Rest: Allowing the casserole to rest after baking improves sliceability and flavor melding.
Best Side Dishes for Ground Beef Zucchini Casserole
Complementing your ground beef zucchini casserole with the right side dishes can enhance its flavors. Here are some great options:
- Garlic Mashed Potatoes: Creamy potatoes flavored with garlic pair well with the rich casserole.
- Quinoa Salad: A light quinoa salad with herbs adds a refreshing contrast.
- Roasted Vegetables: Seasonal roasted vegetables provide both flavor and nutrition.
- Coleslaw: Crunchy coleslaw offers texture and brightness to balance the meal’s heartiness.
- Couscous with Herbs: Fluffy couscous mixed with fresh herbs makes a great side that complements the dish.
- Simple Rice Pilaf: A light rice pilaf with onions and spices enhances the overall dining experience.
Common Mistakes to Avoid
When preparing your Ground Beef Zucchini Casserole, it’s easy to make a few common mistakes that can affect the final dish. Here are some pitfalls to watch out for:
- Over-salting the zucchini: Salting helps draw out moisture, but too much salt can make the dish overly salty. Use just enough to season and rinse thoroughly.
- Not patting the zucchini dry: Failing to remove excess moisture can lead to a watery casserole. Always dry the zucchini well after rinsing.
- Under-cooking the beef: Ground beef should be cooked thoroughly. Ensure there is no pink left by breaking it up and cooking evenly.
- Skipping the resting time: Allowing the casserole to rest after baking helps it set and makes serving easier. Don’t rush this step!
- Using low-quality cheese: Quality cheese enhances flavor and texture. Opt for fresh mozzarella for the best results.
- Not layering properly: For an even bake, layer ingredients thoughtfully. Start with meat, then zucchini, followed by cheese for optimal flavor.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 3-4 days in the refrigerator.
- Ensure the casserole is completely cooled before sealing.
Freezing Ground Beef Zucchini Casserole
- Wrap tightly in plastic wrap or aluminum foil before placing in a freezer-safe container.
- Can be frozen for up to 2-3 months for best quality.
Reheating Ground Beef Zucchini Casserole
- Oven: Preheat to 350°F (175°C) and bake covered for about 20 minutes until heated through.
- Microwave: Heat individual portions on medium power in short intervals, stirring between, until hot.
- Stovetop: Place in a skillet over low heat, stirring occasionally until warmed through.
Frequently Asked Questions
Here are some common questions about Ground Beef Zucchini Casserole that may help you during preparation:
What can I substitute for ground beef in this casserole?
You can use ground turkey or lamb as alternatives. Both provide great flavor and work well with zucchini.
How do I make this Ground Beef Zucchini Casserole healthier?
Consider reducing cheese or using low-fat cheese options. You can also add more vegetables like bell peppers or spinach.
Can I prepare this casserole ahead of time?
Yes! Assemble it up to a day ahead and store it in the refrigerator until you’re ready to bake it.
Is Ground Beef Zucchini Casserole suitable for meal prep?
Absolutely! It’s perfect for meal prep as it stores well and reheats easily, making it ideal for busy weeknights.
How do I prevent my casserole from being watery?
Ensure you salt and drain your zucchini properly before layering. This will help eliminate excess moisture.
Final Thoughts
Ground Beef Zucchini Casserole is not just delicious; it’s versatile too! You can customize this dish with various vegetables or spices based on your preference. It’s a wonderful option for family dinners or meal prep, ensuring everyone enjoys a hearty meal that fits their busy lifestyle. Give this recipe a try; you might find it becoming a household favorite!
Ground Beef Zucchini Casserole
Ground Beef Zucchini Casserole is a comforting and nutritious dish that combines layers of lean ground beef, fresh zucchini, and rich melted cheese, all enveloped in a savory tomato sauce. This easy-to-make casserole is perfect for busy weeknights or meal prepping, making it an ideal option for families seeking a low-carb yet hearty meal. With its balance of flavors and textures, this casserole not only satisfies the appetite but also delights the taste buds. Enjoy it as a main course at dinner or serve it at gatherings; it’s sure to become a family favorite.
- Prep Time: 20 minutes
- Cook Time: 25 minutes
- Total Time: 45 minutes
- Yield: Approximately six servings 1x
- Category: Main
- Method: Baking
- Cuisine: Italian
Ingredients
- 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
Instructions
- Preheat your oven to 350°F (175°C).
- Slice zucchini into 1/2" rounds, salt them lightly, and let sit in a colander for 15 minutes. Rinse and pat dry.
- In a large skillet over medium-high heat, heat olive oil. Sauté the onions until soft, then add garlic and ground beef. Cook until browned.
- Stir in diced tomatoes, Italian seasoning, salt, and pepper; remove from heat.
- In an 8×8 baking dish, layer half of the beef mixture, followed by half of the zucchini slices and half of the mozzarella cheese. Repeat layers.
- Bake for 20 to 25 minutes until the cheese is melted and slightly golden.
- Let rest for 10 minutes before serving.
Nutrition
- Serving Size: 1 serving
- Calories: 380
- Sugar: 6g
- Sodium: 520mg
- Fat: 22g
- Saturated Fat: 9g
- Unsaturated Fat: 11g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 3g
- Protein: 31g
- Cholesterol: 75mg