Ground Turkey Zucchini Casserole

This Ground Turkey Zucchini Casserole is a dinner I make when I want something filling and light. This recipe is especially handy when there is zucchini in the fridge that needs to be used. The casserole comes together quickly on the stovetop, then finishes off in the oven with a simple cheesy topping. I like that it feels balanced, familiar, and without extra sides or prep. It is a dependable casserole I choose when the week needs something easy and steady.

👉 Another delicious casserole you need to try is my Broccoli Alfredo Casserole with Ground Beef.

What You’ll Need for Ground Turkey Zucchini Casserole

• Ground Turkey: Cooks quickly and stays tender once baked
• Zucchini: Softens into the casserole and adds balance
• Mozzarella Cheese: Melts smoothly and deliciously

👉 For another easy oven dinner, check out my Chicken Black Bean and Rice Casserole.

Full Ingredients List

• 1 lb lean ground turkey or ground beef
• 1 medium yellow onion, diced
• 1 tablespoon minced garlic
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• 1 teaspoon Italian seasoning
• 1 teaspoon paprika
• 1½ teaspoons salt
• 1 teaspoon black pepper
• 1 (14 oz) can diced tomatoes, drained
• 2 zucchini, sliced
• ¾ cup Parmesan cheese, divided
• ¾ cup mozzarella cheese, divided
• ½ cup Italian-style panko breadcrumbs
• 2 tablespoons olive oil
• Nonstick cooking spray

🔒 The printable recipe card below includes the full ingredient list and exact amounts — perfect for saving or printing for later.

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Swaps & Substitutions

• Ground turkey can be replaced with ground beef or ground chicken
• Panko breadcrumbs can be replaced with crushed crackers if needed

How to Make Ground Turkey Zucchini Casserole

Step 1: Preheat the oven to 350°F and spray an 8×8-inch baking dish with nonstick cooking spray.

Step 2: In a large skillet over medium heat, cook the ground turkey, diced onion, and minced garlic until the meat is fully cooked and the onion is softened. Drain excess fat if needed.

Step 3: Stir in the oregano, basil, Italian seasoning, paprika, salt, and pepper until evenly combined.

Step 4: Add the drained diced tomatoes and sliced zucchini. Cook for about 5 minutes, stirring occasionally, until the zucchini begins to soften.

Step 5: Stir in half of the Parmesan cheese and half of the mozzarella cheese.

Step 6: Transfer the mixture to the prepared baking dish and spread evenly.

Step 7: Sprinkle the remaining Parmesan and mozzarella cheeses over the top.

Step 8: In a small bowl, mix the panko breadcrumbs with the olive oil, then sprinkle evenly over the casserole.

Step 9: Bake uncovered for 25 minutes, or until bubbly and lightly golden on top.

Ground Turkey Zucchini Casserole Variations

• Add sliced mushrooms for extra volume
• Use seasoned ground Italian turkey for more flavor
• Stir in cooked rice to stretch the casserole further

 👉 If you are prepping two casseroles at once my Broccoli Alfredo Casserole with Ground Beef is a great option.

Recipe FAQs – Ground Turkey Zucchini Casserole

Serving Suggestions

• Serve with a simple green salad
• Pair with garlic bread or my Easy One Hour Dinner Rolls

 👉 For the comfort that a casserole brings paired with Tex-Mex flavors, try my Chicken Black Bean and Rice Casserole.

Make-Ahead, Storage & Reheating

• Fridge: Store leftovers up to 4 day
• Freezer: Freeze baked portions up to 2 months
• Reheat: Warm in the oven or microwave until heated completely through

👉 This recipe reheats as easily as Broccoli Alfredo Casserole with Ground Beef.