Zucchini Casserole is a hearty, cheesy, and flavorful dish that makes zucchini the star of the table. With tender layers of zucchini, savory onion, melted mozzarella and cheddar, and a golden breadcrumb topping, this recipe delivers comfort and flavor in every bite. Perfect for potlucks, weeknight dinners, or holiday spreads, it’s a versatile casserole that turns simple ingredients into something truly special.
Why You’ll Love This Recipe
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Family-Friendly Comfort Food: Cheesy, creamy, and satisfying, even picky eaters will love it.
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Easy to Make: Simple steps with ingredients you probably already have on hand.
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Versatile Dish: Works as a main course or as a hearty side dish.
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Make-Ahead Option: Easy to assemble ahead of time for stress-free cooking.
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Customizable: Adapt with fresh herbs, squash, or different cheeses to fit your taste.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
4 medium zucchinis, sliced
1 cup shredded mozzarella cheese
1 cup shredded cheddar cheese
3 large eggs
1 sweet onion, finely chopped
1 teaspoon garlic powder
1 cup seasoned breadcrumbs
2 tablespoons olive oil
Salt and pepper, to taste
Directions
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Preheat Oven: Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish.
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Sauté Vegetables: In a skillet, heat olive oil over medium heat. Cook onion until translucent, about 5 minutes. Add zucchini and garlic powder, sautéing 3–4 minutes until slightly softened.
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Mix Egg Base: In a bowl, whisk together eggs with salt and pepper.
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Combine Ingredients: In a large bowl, mix sautéed vegetables with mozzarella, cheddar, and the egg mixture. Stir gently to combine.
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Bake Casserole: Pour mixture into prepared baking dish. Top evenly with breadcrumbs. Bake 30–35 minutes until golden brown and set.
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Serve: Allow to cool slightly before slicing.
Servings and timing
Servings: 8
Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes
Variations
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Herb Boost: Add fresh thyme, oregano, or basil for more flavor.
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Swap Veggies: Substitute yellow squash or mix with zucchini for color contrast.
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Cheese Lovers’ Twist: Try adding Parmesan or Gruyere for a richer flavor.
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Crunchier Topping: Mix breadcrumbs with a little melted butter before sprinkling.
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Protein Boost: Add cooked shredded chicken, ground turkey, or sausage to make it a main dish.
Storage/Reheating
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Refrigerate: Store leftovers in an airtight container for up to 3 days.
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Freeze: Freeze in portions for up to 2 months. Thaw overnight in the fridge before reheating.
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Reheat: Warm in a 350°F oven until heated through, or microwave individual portions.
FAQs
Can I use yellow squash instead of zucchini?
Yes, or use a mix of both for extra color and flavor.
Do I need to peel the zucchini?
No, the skin softens during cooking and adds nutrients and color.
Can I make this casserole ahead of time?
Yes, assemble the casserole up to a day in advance, cover, and refrigerate. Bake when ready.
How do I prevent the casserole from being watery?
Lightly salt zucchini slices and pat them dry before cooking to reduce excess moisture.
Can I make it gluten-free?
Yes, substitute breadcrumbs with gluten-free ones.
What other cheeses work well?
Parmesan, Gruyere, Monterey Jack, or even goat cheese can be used.
Can I add more vegetables?
Yes, mushrooms, bell peppers, or spinach make great additions.
Is this casserole kid-friendly?
Yes—its cheesy flavor usually appeals to kids, even if they’re not big fans of zucchini.
Can I double the recipe?
Yes, just use a larger casserole dish and increase baking time slightly.
What can I serve this with?
It pairs well with grilled meats, roasted chicken, or a fresh salad.
Conclusion
Zucchini Casserole is a comforting, cheesy, and versatile dish that’s perfect for any occasion. With tender zucchini, melted cheese, and a golden breadcrumb topping, it’s a recipe that transforms humble ingredients into something truly satisfying. Serve it as a side or a main, and enjoy a dish that’s as comforting as it is delicious.
Zucchini Casserole
- Total Time: 50 minutes
- Yield: 8 servings
Description
Zucchini Casserole is a comforting and easy-to-make dish layered with tender zucchini, creamy cheese, and aromatic herbs. Perfect for potlucks or cozy family dinners, this baked delight is both colorful and flavorful.
Ingredients
4 medium zucchinis, sliced
1 cup shredded mozzarella cheese
1 cup shredded cheddar cheese
3 large eggs
1 sweet onion, finely chopped
1 tsp garlic powder
1 cup seasoned breadcrumbs
2 tbsp olive oil
Salt and pepper to taste
Instructions
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Preheat oven to 375°F (190°C) and grease a 9×13-inch baking dish.
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In a skillet over medium heat, heat olive oil and sauté the chopped onion until translucent (about 5 minutes).
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Add sliced zucchini and garlic powder; sauté until slightly softened (3-4 minutes).
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In a bowl, whisk together eggs, salt, and pepper.
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Combine sautéed vegetables with cheeses and egg mixture in a large bowl; mix gently.
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Pour the mixture into the prepared baking dish, top with breadcrumbs, and bake for 30-35 minutes or until golden brown.
Notes
- For added flavor, consider mixing in fresh herbs like thyme or oregano.
- Substitute zucchini with yellow squash for a different twist.
- Leftovers can be stored in an airtight container for up to three days.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Main Course
- Method: Baking
- Cuisine: American
