Description
This Zucchini & Parmesan Hashbrown Casserole is the ultimate comfort food for any occasion. Crispy hashbrowns, tender zucchini, and a cheesy, creamy filling make this dish perfect for family dinners, weekend brunches, or holiday gatherings. Inspired by classic casseroles from childhood, it’s a versatile recipe that brings warmth, flavor, and a touch of nostalgia to the table.
Ingredients
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1 (30-ounce) package frozen shredded hashbrowns, thawed
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2 medium zucchinis, grated and excess moisture squeezed out
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1 cup grated Parmesan cheese
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1 ½ cups shredded cheddar cheese
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1 small onion, finely chopped
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3 cloves garlic, minced
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1 cup sour cream
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½ cup mayonnaise
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2 large eggs
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½ teaspoon salt
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½ teaspoon black pepper
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½ teaspoon paprika
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½ teaspoon onion powder
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½ teaspoon garlic powder
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2 tablespoons olive oil or unsalted butter
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½ cup panko breadcrumbs (optional, for topping)
Instructions
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Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish.
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Grate the zucchinis and squeeze out excess moisture using a clean kitchen towel or paper towels.
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In a medium skillet, heat olive oil or butter over medium heat. Add the chopped onion and sauté for 3–4 minutes until softened. Add minced garlic and cook for another 30 seconds. Remove from heat and allow to cool slightly.
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In a large mixing bowl, combine hashbrowns, zucchini, sautéed onions and garlic, Parmesan cheese, cheddar cheese, sour cream, mayonnaise, eggs, salt, pepper, paprika, onion powder, and garlic powder. Mix well.
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Spread the mixture evenly in the prepared baking dish. Smooth the top and sprinkle panko breadcrumbs if desired.
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Bake for 45–55 minutes, until the top is golden brown and the center is set.
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Remove from the oven and let rest for 5–10 minutes before serving.
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Slice and serve warm as a main dish or side.
Notes
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Squeeze zucchini thoroughly to prevent excess moisture.
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For extra crunch, sprinkle panko breadcrumbs on top before baking.
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Make ahead by preparing the casserole a day in advance; bake just before serving.
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Customize with additional vegetables or different cheeses to suit your taste.
- Prep Time: 20 minutes
- Cook Time: 50 minutes