Ground Beef Zucchini Casserole
If you’re looking for a hearty dish that brings everyone together, let me introduce you to my Ground Beef Zucchini Casserole! This recipe holds a special place in my heart because it perfectly combines comfort and nutrition. With layers of tender zucchini, savory ground beef, and melty cheese, it’s a crowd-pleaser that’s easy enough for busy weeknights but special enough for family gatherings. Plus, it’s low-carb, making it a great choice for anyone watching their carbs.
There’s something about the aroma of this casserole bubbling away in the oven that just feels like home. It’s cozy, cheesy, and oh-so-satisfying. Whether you’re feeding a hungry family or prepping meals for the week, this dish is bound to become a new favorite!
Why You’ll Love This Recipe
- Quick to prepare: With just 15 minutes of prep time, dinner will be on the table in no time.
- Family-friendly: Kids and adults alike adore the cheesy layers and flavors.
- Make-ahead convenience: You can prepare it ahead of time and bake it when you’re ready.
- Healthy option: Packed with veggies and lean protein, this casserole is both nutritious and delicious.

Ingredients You’ll Need
Gathering ingredients for this Ground Beef Zucchini Casserole is a breeze! These are simple, wholesome items you likely already have on hand. Let’s take a look at what you’ll need:
For the Casserole
- 2 medium zucchinis (about 2 lbs), sliced into 1/2 rounds
- 1 tbsp olive oil
- 1 small onion, finely diced
- 2 garlic cloves, minced
- 1 lb lean ground beef
- 2 tsp Italian seasoning
- 1/2 tsp kosher salt
- 1/2 tsp black pepper
- 1 (28 oz) can diced tomatoes, drained
- 2 cups shredded mozzarella cheese
Variations
One of the best things about this recipe is its flexibility! You can easily make it your own with some fun variations. Here are a few ideas:
- Swap the protein: Try using ground turkey or chicken instead of beef for a lighter version.
- Add more veggies: Mix in some bell peppers or spinach for added color and nutrition.
- Spice it up: Add red pepper flakes for a little heat or use spicy Italian sausage for extra flavor.
- Cheese alternatives: Experiment with different cheeses like cheddar or pepper jack to change up the taste.
How to Make Ground Beef Zucchini Casserole
Step 1: Prepare the Zucchini
Start by slicing your zucchinis into 1/2-inch rounds. Place them in a colander and sprinkle with salt. This step helps draw out excess moisture from the zucchini so that your casserole doesn’t end up watery. Let them sit for about 15 minutes while you prepare the rest of your ingredients.
Step 2: Sauté the Aromatics
Rinse off the salted zucchini slices under cold water and pat them dry. In a large skillet over medium-high heat, add olive oil and then sauté your diced onions for about 2 minutes until they soften. Next, toss in minced garlic and cook until fragrant—this will really enhance the flavor of your casserole!
Step 3: Cook the Beef
Now it’s time to add in your ground beef! Crumble it into the skillet with your onions and garlic. Cook it until browned and fully cooked through—about 5 minutes should do it. Stirring occasionally helps break up any clumps while ensuring everything cooks evenly.
Step 4: Mix in Flavorful Ingredients
Once your beef is cooked, stir in those drained diced tomatoes along with Italian seasoning, salt, and pepper. This mixture is going to be packed with flavor! Remove from heat once everything is combined.
Step 5: Layer It Up
Preheat your oven to 350°F (175°C). In an 8×8-inch baking dish, start layering half of your beef mixture at the bottom. Next comes half of those zucchini slices followed by half of your shredded mozzarella cheese. Repeat these layers one more time to create a deliciously cheesy topping.
Step 6: Bake to Perfection
Pop your casserole into the preheated oven and bake for about 20-25 minutes. You’ll know it’s done when the cheese is melted and starting to brown—such an inviting sight!
Step 7: Let It Rest
After removing it from the oven, let your casserole sit for about 10 minutes before slicing into squares. This resting period helps everything set nicely, making serving easier.
Enjoy every comforting bite of this Ground Beef Zucchini Casserole! It’s sure to warm both hearts and bellies alike.
Pro Tips for Making Ground Beef Zucchini Casserole
Making a delicious Ground Beef Zucchini Casserole is easy, but a few pro tips can elevate your dish to the next level!
- Drain zucchini well: After salting and rinsing, ensure you pat the zucchini dry. Removing excess moisture prevents a soggy casserole and enhances the flavors of the dish.
- Use lean ground beef: Opting for lean ground beef (at least 90% lean) means less grease and more flavor in your casserole, making it healthier without sacrificing taste.
- Experiment with cheese: While mozzarella is classic, feel free to mix in other cheeses like cheddar or provolone for added depth of flavor. Cheese not only adds creaminess but also contributes to that gooey, comforting texture we all love.
- Layer thoughtfully: When layering your casserole, try to distribute the ingredients evenly. This ensures each bite is packed with flavor and avoids any one section being too heavy or light on ingredients.
- Let it rest: Allowing the casserole to sit for about 10 minutes after baking helps it set up nicely, making it easier to slice and serve while enhancing its overall texture.
How to Serve Ground Beef Zucchini Casserole
Serving your Ground Beef Zucchini Casserole can be just as delightful as making it! Here are some ideas on how to present this comforting dish beautifully.
Garnishes
- Fresh herbs: Sprinkle chopped fresh basil or parsley on top before serving for a burst of color and freshness that brightens the dish.
- Red pepper flakes: For those who enjoy a bit of heat, a pinch of red pepper flakes adds spice and an extra layer of flavor without overwhelming the palate.
Side Dishes
- Garlic Bread: A warm, crusty garlic bread complements the cheesy casserole perfectly. It’s great for scooping up every last bit!
- Mixed Green Salad: A light salad with mixed greens, cherry tomatoes, and a simple vinaigrette offers a refreshing contrast to the rich flavors of the casserole.
- Steamed Broccoli: Lightly steamed broccoli is not only nutritious but also adds a pop of color and crunch that pairs well with the softness of the casserole.
- Cauliflower Rice: For a low-carb option, serve with cauliflower rice seasoned with herbs. It absorbs flavors beautifully and provides a satisfying base for your meal.
Enjoy crafting this delicious Ground Beef Zucchini Casserole and sharing it with family and friends! It’s sure to become a favorite at your dinner table.

Make Ahead and Storage
This Ground Beef Zucchini Casserole is not only delicious but also perfect for meal prep! You can easily make it ahead of time and store it for later, making weeknight dinners a breeze.
Storing Leftovers
- Allow the casserole to cool completely before storing.
- Transfer leftovers to an airtight container.
- Store in the refrigerator for up to 3-4 days.
Freezing
- To freeze, let the casserole cool fully and then cut into individual portions.
- Wrap each portion in plastic wrap or aluminum foil, then place in a freezer-safe container or bag.
- Freeze for up to 3 months. Be sure to label with the date!
Reheating
- For best results, thaw overnight in the refrigerator before reheating.
- Preheat your oven to 350°F (175°C) and place the casserole in an oven-safe dish.
- Cover with aluminum foil to retain moisture and heat for about 20-25 minutes or until warmed through. Alternatively, reheat in the microwave on medium power until hot.
FAQs
Here are some common questions about the Ground Beef Zucchini Casserole that you might find helpful!
Can I use other vegetables in my Ground Beef Zucchini Casserole?
Absolutely! Feel free to add vegetables like bell peppers, mushrooms, or spinach. Just be mindful of the moisture content and adjust cooking times if necessary.
How long does this Ground Beef Zucchini Casserole last in the fridge?
When stored properly in an airtight container, this casserole can last for 3-4 days in the refrigerator.
What can I serve with Ground Beef Zucchini Casserole?
This dish is delicious on its own but pairs well with a side salad or crusty bread for a complete meal.
Can I make this recipe gluten-free?
Yes! This recipe is naturally gluten-free as it does not contain any wheat products. Just double-check your canned tomatoes and shredded cheese labels to ensure they meet gluten-free standards.
Final Thoughts
I truly hope you enjoy making this Ground Beef Zucchini Casserole as much as I do! It’s a comforting dish that brings together simple ingredients for a satisfying meal. Whether you’re preparing for a busy week ahead or simply craving something warm and cheesy, this recipe fits perfectly into your dinner rotation. Don’t hesitate to give it a try tonight—I’m sure you’ll love every bite!
Ground Beef Zucchini Casserole
If you’re in search of a comforting and nutritious weeknight meal, look no further than this Ground Beef Zucchini Casserole. This delightful dish layers tender zucchini, savory ground beef, and melty cheese for a hearty meal that the whole family will love. Perfectly seasoned and low in carbs, it strikes a balance between indulgence and health. With just 15 minutes of prep time, you can have dinner ready to bake while filling your kitchen with mouthwatering aromas. It’s an ideal choice for busy evenings or special gatherings—once you try it, it will undoubtedly become a staple in your household.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: Approximately 6 servings 1x
- Category: Main
- Method: Baking
- Cuisine: American
Ingredients
- 2 medium zucchinis (about 2 lbs), sliced into 1/2" rounds
- 1 tbsp olive oil
- 1 small onion, finely diced
- 2 garlic cloves, minced
- 1 lb lean ground beef
- 2 tsp Italian seasoning
- 1/2 tsp kosher salt
- 1/2 tsp black pepper
- 1 (28 oz) can diced tomatoes, drained
- 2 cups shredded mozzarella cheese
Instructions
- Preheat your oven to 350°F (175°C).
- Slice zucchinis into rounds and sprinkle with salt; let sit for 15 minutes to draw out moisture.
- Rinse zucchini and pat dry. In a skillet over medium-high heat, sauté onions in olive oil until soft (about 2 minutes). Add garlic and cook until fragrant.
- Add ground beef to the skillet; cook until browned and fully cooked through (about 5 minutes).
- Stir in drained diced tomatoes, Italian seasoning, salt, and pepper; remove from heat.
- In an 8×8-inch baking dish, layer half of the beef mixture, followed by half of the zucchini slices and half of the cheese. Repeat layers.
- Bake for about 20-25 minutes or until the cheese is melted and slightly browned.
- Let cool for 10 minutes before serving.
Nutrition
- Serving Size: 1 slice (Approx. 200g)
- Calories: 350
- Sugar: 6g
- Sodium: 480mg
- Fat: 18g
- Saturated Fat: 7g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 14g
- Fiber: 4g
- Protein: 30g
- Cholesterol: 80mg