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🥒🧀 Cheesy Zucchini Casserole

May 20, 2025 by Melissa Harrison Leave a Comment

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Here’s a comforting and delicious Cheesy Zucchini Casserole — the perfect way to use up fresh zucchini! It’s creamy, cheesy, and topped with a golden breadcrumb crust.


🥒🧀 Cheesy Zucchini Casserole

Tender zucchini baked in a rich cheese sauce and topped with crispy breadcrumbs — a cozy, veggie-packed side dish or light main!


⏱️ Time:

  • Prep Time: 15 minutes
  • Cook Time: 30–35 minutes
  • Total Time: ~50 minutes

✅ Ingredients:

  • 4 cups zucchini, sliced into thin half-moons
  • 1/2 cup onion, finely chopped
  • 2 tablespoons olive oil or butter
  • 1/2 cup sour cream or Greek yogurt
  • 1/2 cup shredded cheddar cheese
  • 1/4 cup Parmesan cheese
  • 1 large egg, beaten
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper

Topping:

  • 1/2 cup breadcrumbs (plain or panko)
  • 1 tablespoon butter, melted
  • Optional: extra shredded cheese for topping

👩‍🍳 Instructions:

  1. Preheat oven to 375°F (190°C). Lightly grease an 8×8-inch or similar baking dish.
  2. Sauté veggies: In a large skillet, heat olive oil/butter over medium heat. Add zucchini and onion. Cook for 5–7 minutes until softened. Remove excess moisture if needed.
  3. Make the filling: In a bowl, mix sautéed zucchini and onions with sour cream, cheddar, Parmesan, egg, garlic powder, salt, and pepper.
  4. Assemble casserole: Spread the mixture into the prepared baking dish.
  5. Prepare topping: In a small bowl, mix breadcrumbs with melted butter. Sprinkle over the casserole. Add extra cheese on top if desired.
  6. Bake: Bake for 30–35 minutes, until golden and bubbly.
  7. Cool slightly before serving — enjoy warm!

🍽️ Serving Size:

  • Serves 6 as a side, or 4 as a light main dish

📝 Notes & Tips:

  • Remove excess water: If your zucchini is very watery, you can lightly salt it and let it sit for 10 minutes, then blot with a paper towel.
  • Add protein: Mix in cooked ground chicken, turkey, or bacon for a heartier dish.
  • Make it gluten-free: Use gluten-free breadcrumbs or crushed pork rinds.
  • Reheats well: Store in the fridge for up to 3 days. Reheat in oven or microwave.
🥒🧀 Cheesy Zucchini Casserole
Print

🥒🧀 Cheesy Zucchini Casserole

Servings

6

servings
Prep time

15

minutes
Cooking time

30

minutes

Ingredients

  • 4 cups zucchini, sliced into thin half-moons

  • 1/2 cup onion, finely chopped

  • 2 tablespoons olive oil or butter

  • 1/2 cup sour cream or Greek yogurt

  • 1/2 cup shredded cheddar cheese

  • 1/4 cup Parmesan cheese

  • 1 large egg, beaten

  • 1/2 teaspoon garlic powder

  • 1/2 teaspoon salt

  • 1/4 teaspoon black pepper

  • Topping:

  • 1/2 cup breadcrumbs (plain or panko)

  • 1 tablespoon butter, melted

  • Optional: extra shredded cheese for topping

Directions

  • Preheat oven to 375°F (190°C). Lightly grease an 8×8-inch or similar baking dish.
  • Sauté veggies: In a large skillet, heat olive oil/butter over medium heat. Add zucchini and onion. Cook for 5–7 minutes until softened. Remove excess moisture if needed.
  • Make the filling: In a bowl, mix sautéed zucchini and onions with sour cream, cheddar, Parmesan, egg, garlic powder, salt, and pepper.
  • Assemble casserole: Spread the mixture into the prepared baking dish.
  • Prepare topping: In a small bowl, mix breadcrumbs with melted butter. Sprinkle over the casserole. Add extra cheese on top if desired.
  • Bake: Bake for 30–35 minutes, until golden and bubbly.
  • Cool slightly before serving — enjoy warm!

Sharing is caring!

288 shares
  • Facebook
  • Yummly

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