Ground Beef And Zucchini Casserole

Name: Ground Beef And Zucchini Casserole
Prep time: 20 min
Cook time: 35 min
Total time: 55 min
Yield: 6 servings
Ingredients: 1 lb ground beef; 2 medium zucchinis, sliced; 1 medium onion, chopped; 2 cloves garlic, minced; 1 cup marinara sauce; 2 cups shredded mozzarella cheese; 1 teaspoon Italian seasoning; Salt and pepper to taste

Highlighted under: Simple Comfort Plates

I absolutely love making this Ground Beef and Zucchini Casserole! It's a hearty dish that not only satisfies my cravings but also provides a healthy way to enjoy vegetables. The combination of savory ground beef and tender zucchini topped with melted cheese creates a delightful meal any time of the year. Plus, it's super easy to put together on a busy weeknight, and my family always comes back for seconds! This recipe is a perfect blend of comfort and nutrition, and I can't wait for you to try it!

Created by

Paige Sullivan

Last updated on 2026-02-28T10:13:34.915Z

Making this casserole was inspired by my desire to create a wholesome family meal that was both filling and nutritious. I used fresh zucchini from the farmer's market, which adds a delightful texture and moisture to the dish. The oozing melted cheese on top? That's just the bow on this comfort food masterpiece!

What I learned while perfecting this recipe is the importance of seasoning. I sauté the ground beef with onions and garlic before layering it, as this enhances the depth of flavor throughout the casserole. Trust me, take the time to season well; it makes all the difference!

        Why You'll Love This Recipe
        Hearty and satisfying, perfect for family dinners
Incorporates healthy veggies without sacrificing flavor
Easily customizable with your favorite seasonings and cheeses

      

Ingredient Insights

The choice of ground beef is crucial for achieving the right texture in this casserole. I recommend using80% lean ground beef, as it strikes a good balance between flavor and moisture. Leaner cuts can dry out during baking, while fattier options can lead to a greasy dish. Additionally, browning the meat until it's fully cooked allows for depth of flavor, creating a savory base that pairs well with the fresh zucchini.

Zucchini adds not only nutrients but also moisture to the casserole. Look for firm zucchinis with a glossy skin, as they indicate freshness. When sliced, they should be about a half-inch thick to ensure they cook evenly but retain some bite. If you're short on zucchini, feel free to substitute with another summer squash or even sliced bell peppers for a colorful twist.

Layering Techniques

Proper layering is essential for a balanced casserole. Start with the meat and zucchini mixture, spreading it evenly in the baking dish to avoid dry spots. As you sprinkle the mozzarella cheese on top, ensure it covers the entire surface, as this will melt beautifully and create a deliciously gooey topping. A sprinkle of additional Italian seasoning on top before baking can elevate the flavor, giving it that extra zing.

Be mindful of your baking dish; a glass or ceramic dish works best as they retain heat and promote even cooking. If you prefer a crispy cheese top, consider broiling the casserole for the last 2-3 minutes. Keep a close watch to prevent burning; you want a rich, golden-brown finish that invites everyone to dig in!

Ingredients

Main Ingredients

1 lb ground beef
2 medium zucchinis, sliced
1 medium onion, chopped
2 cloves garlic, minced
1 cup marinara sauce
2 cups shredded mozzarella cheese
1 teaspoon Italian seasoning
Salt and pepper to taste

Instructions

Preheat and Cook Meat

Preheat your oven to 350°F (175°C). In a large skillet over medium heat, add the ground beef, onion, and garlic. Cook until the meat is browned, breaking it up as it cooks. Drain excess fat.

Add Zucchini and Sauce

Stir in the sliced zucchini, marinara sauce, Italian seasoning, salt, and pepper. Cook for an additional 5 minutes until the zucchini is slightly tender.

Layer and Bake

In a greased baking dish, layer the meat and zucchini mixture evenly. Sprinkle 1 cup of mozzarella cheese over the top and bake for 25-30 minutes, until the cheese is melted and bubbly.

Serve

Allow the casserole to cool for a few minutes before serving. Enjoy your hearty meal with a side salad or garlic bread!

Pro Tips

For a spicier kick, add crushed red pepper flakes to the meat mixture. Try swapping the ground beef for turkey or chicken for a leaner option.

Storing and Reheating

This Ground Beef and Zucchini Casserole can be an excellent make-ahead meal. Once baked, allow it to cool completely before covering it with plastic wrap and refrigerating. It stays fresh for up to three days. For longer storage, it can be frozen for up to three months. I recommend slicing the casserole into individual portions before freezing to make reheating easier later on.

Reheating is a breeze! You can microwave individual servings for about 2-3 minutes, or for a whole dish, bake at 350°F (175°C) for about 20-25 minutes until heated through. If it's been frozen, it's best to thaw it overnight in the refrigerator before reheating to ensure even warming.

Serving Suggestions

While this casserole is hearty enough on its own, serving it with a refreshing side salad can lighten the meal and offer a nice contrast in textures. A simple arugula salad with lemon vinaigrette or a classic Caesar salad complements the rich flavors beautifully. If you prefer some extra carbs, warm garlic bread or a side of pasta makes for a comforting pairing.

For those who enjoy a bit of heat, consider serving the casserole with a side of crushed red pepper flakes or a homemade spicy marinara sauce for drizzling. Variations on cheese can also enhance the dish; try using a blend of cheddar and mozzarella, or even sprinkle some parmesan on top for an extra layer of flavor!

Questions About Recipes

→ Can I use other vegetables?

Absolutely! Bell peppers, spinach, or mushrooms would work well in this casserole.

→ How can I make this dish vegetarian?

Replace the ground beef with a plant-based meat alternative or use extra vegetables with a little more cheese.

→ Can I prepare this casserole in advance?

Yes, you can assemble the casserole ahead of time and refrigerate it. Just add an extra 10 minutes to the baking time if baking from cold.

→ What should I serve with the casserole?

A fresh side salad or garlic bread complements this dish perfectly!