Ground Beef Zucchini Casserole Recipe

Transform simple ingredients into a flavorful, hearty meal with this Ground Beef Zucchini Casserole. Tender zucchini, perfectly seasoned ground beef, and melty cheese combine to create a dish that is both nutritious and indulgent. Ideal for weeknight dinners or meal prepping, this casserole delivers layers of taste, texture, and comfort in every bite.

Ingredients List

• 1 pound ground beef
• 2 medium zucchinis, sliced thinly
• 1 small onion, finely chopped
• 2 cloves garlic, minced
• 1 cup shredded cheddar cheese
• ½ cup grated Parmesan cheese
• 1 cup marinara sauce or tomato sauce
• ½ teaspoon dried oregano
• ½ teaspoon dried basil
• ½ teaspoon smoked paprika
• Salt and freshly ground black pepper, to taste
• 2 tablespoons olive oil
• 1 tablespoon fresh parsley, chopped, for garnish

Step-by-Step Instructions

Step 1: Preheat Oven

Preheat your oven to 375°F (190°C). Grease a 9×9-inch baking dish or similar casserole dish.

Step 2: Cook the Ground Beef

In a large skillet, heat olive oil over medium-high heat. Add ground beef and cook until browned, breaking it apart as it cooks. Season with salt, pepper, oregano, basil, and smoked paprika. Remove excess fat if needed.

Step 3: Sauté Aromatics

Add onions and garlic to the skillet with the beef. Sauté until onions are translucent, about 3–4 minutes.

Step 4: Layer the Casserole

Spread a thin layer of marinara sauce at the bottom of the baking dish. Layer half of the sliced zucchini on top, then add half of the cooked ground beef mixture. Sprinkle with a portion of cheddar and Parmesan cheese. Repeat the layers with the remaining zucchini, beef, and cheeses. Top with a final sprinkle of cheese.

Step 5: Bake

Cover the dish with foil and bake for 25 minutes. Remove foil and bake an additional 10–15 minutes until the cheese is melted and bubbly and zucchini is tender.

Step 6: Serve

Garnish with fresh parsley and serve hot as a satisfying main dish or a family-friendly dinner.

Cook Time

• Prep Time: 15 minutes
• Cook Time: 40 minutes
• Total Time: 55 minutes

Servings

Serves 4–6

Nutritional Information (approx. per serving)

• Calories: 380 kcal
• Protein: 28 g
• Carbohydrates: 12 g
• Fat: 24 g
• Saturated Fat: 10 g
• Fiber: 3 g
• Sugar: 6 g
• Sodium: 650 mg

Storage Instructions

• Store leftovers in an airtight container in the refrigerator for up to 4 days.
• Reheat in the microwave or oven until warmed through.
• Can be frozen for up to 2 months; thaw overnight in the refrigerator before reheating.

Suggestions

• Add sliced mushrooms or bell peppers for extra flavor and nutrition.
• Substitute ground turkey or chicken for a leaner option.
• Sprinkle with breadcrumbs mixed with Parmesan before baking for a crunchy topping.

Seasonal Relevance

This casserole works perfectly year-round. Light zucchini keeps it fresh for summer dinners, while hearty ground beef and cheese make it comforting for cooler months.

Conclusion

The Ground Beef Zucchini Casserole is a versatile, nutritious, and indulgent dish that balances rich flavors with fresh vegetables. Easy to prepare yet full of flavor, it’s ideal for family meals, meal prepping, or casual entertaining.

FAQs

Q1: Can I make this casserole ahead of time?
Yes. Assemble the casserole, cover it tightly, and refrigerate for up to 24 hours. Bake just before serving.

Q2: Can I use frozen zucchini?
Yes, but thaw and squeeze out excess water to avoid a watery casserole.

Q3: Can I make this casserole keto-friendly?
Absolutely. Zucchini is already low-carb, and you can use full-fat cheese and omit marinara sauce or choose a low-carb tomato sauce.