Hash brown casserole baked in a loaf pan offers a hearty, crispy, and cheesy side dish that’s perfect for brunch, potlucks, or family dinners. Its compact, loaf shape makes it easy to serve, portion, and transport, while still delivering all the comforting flavors of classic hash brown casserole.
Ingredients
- 4 cups frozen hash browns (shredded or diced), thawed
- 1 cup shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- 1 small onion, finely chopped
- 1/2 cup sour cream
- 1/2 cup milk (whole or 2%)
- 3 tablespoons unsalted butter, melted
- 1 teaspoon garlic powder
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
<2 tablespoons chopped fresh parsley (optional, for garnish)
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease a standard 9×5-inch loaf pan with butter or non-stick spray.
- In a large mixing bowl, combine the thawed hash browns, shredded cheddar, grated Parmesan, and chopped onion. Mix well to evenly distribute the ingredients.
- In a separate small bowl, whisk together the sour cream, milk, melted butter, garlic powder, salt, and black pepper until smooth.
- Pour the wet mixture over the hash brown mixture and stir thoroughly until everything is evenly coated.
- Transfer the combined mixture into the prepared loaf pan, pressing down gently to ensure even distribution and compactness.
- Place the loaf pan on a baking sheet to catch any potential overflow. Bake in the preheated oven for 45-50 minutes, or until the casserole is golden brown on top and set in the center.
- Remove from the oven and let it rest for about 10 minutes before slicing. Garnish with chopped parsley if desired, then serve warm.
Tips
- For extra flavor, add cooked bacon bits or diced ham into the mixture before baking.
- If you prefer a crunchier top, broil the casserole for the last 2-3 minutes, watching carefully to prevent burning.
- To make this dish vegetarian, omit the bacon and use additional cheese or vegetables like bell peppers or spinach.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat in the microwave or oven until hot.
Serving Suggestions
This hash brown casserole pairs wonderfully with scrambled eggs and a fresh fruit salad for breakfast or brunch. It also works as a hearty side dish alongside roasted meats, grilled chicken, or fish for dinner. For a more substantial meal, serve with a side of sautéed vegetables or a simple green salad.
Variations
- Cheese Variations: Use a mix of cheeses like Monterey Jack, mozzarella, or pepper jack for different flavor profiles.
- Vegetable Add-ins: Incorporate cooked vegetables such as diced bell peppers, cooked spinach, or sliced mushrooms into the mixture for added nutrition and flavor.
- Spicy Version: Add diced jalapeños or a pinch of cayenne pepper to bring some heat to the dish.
- Gluten-Free: Ensure all ingredients are gluten-free, especially the cheeses and any added seasonings, for a gluten-free version.
Storage and Reheating
Leftover hash brown casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place slices in the microwave and heat on medium power for 1-2 minutes or until warmed through. For best results, reheat in a 350°F (175°C) oven for about 15-20 minutes, covered with foil to prevent drying out. This ensures the casserole maintains its texture and flavor.
Frequently Asked Questions
Can I prepare this casserole ahead of time?
Yes, you can assemble the casserole a day in advance, cover it tightly with plastic wrap, and refrigerate. When ready to bake, remove from the fridge and bake at 375°F (190°C) for about 50-55 minutes, or until hot and golden on top.
Can I freeze this hash brown casserole?
Absolutely. After baking and cooling completely, wrap the casserole tightly in plastic wrap and then foil. Freeze for up to 3 months. To reheat, thaw overnight in the refrigerator and bake at 350°F (175°C) for 30-40 minutes until heated through.
What if I don’t have a loaf pan?
You can use a standard 9×13-inch baking dish or individual ramekins. Adjust the baking time accordingly; a larger dish may require slightly less time, around 40-45 minutes. Just ensure the casserole is cooked through and has a golden top.
Is this dish suitable for gluten-free diets?
Yes, as long as you use gluten-free cheeses and check that any added seasonings or ingredients are gluten-free. The basic ingredients listed are naturally gluten-free.
Can I add cooked meats or vegetables?
Definitely. Adding cooked bacon, ham, sausage, or vegetables like bell peppers, spinach, or mushrooms can enhance flavor and nutritional value. Just mix them into the hash brown base before baking.
How do I prevent the casserole from drying out?
Ensure you don’t overbake it and keep the moisture content high by using sour cream and milk in the mixture. Covering with foil during reheating also helps retain moisture.
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