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Preheat your oven to 400°F. Ensure your oven rack is in the middle position for even baking.

In a large glass baking dish (approximately 9x13 inches), combine the entire 32-ounce bag of frozen Southern Style diced hash browns with the 16 ounces of shredded sharp cheddar cheese.

Add the 10 1/2-ounce can of cream of mushroom soup, the 16-ounce container of sour cream, and the 3/4 cup of chopped yellow onion to the baking dish with the hash browns and cheese.

Using a large spoon or spatula, mix all the ingredients thoroughly in the baking dish until everything is well combined and the hash browns are evenly coated.

Melt the 4 tablespoons of butter, either in a microwave-safe bowl or a small saucepan over low heat.

Pour the melted butter evenly over the mixture in the baking dish.

Give the entire mixture one final good stir to ensure the melted butter is fully incorporated throughout the casserole.

Place the baking dish into the preheated 400°F oven and bake for approximately 45 minutes, or until the casserole is golden brown on top and bubbly around the edges.

Carefully remove the casserole from the oven and let it rest for a few minutes before serving. This allows it to set slightly and makes for easier serving.


Preheat your oven to 400°F. Ensure your oven rack is in the middle position for even baking.

In a large glass baking dish (approximately 9x13 inches), combine the entire 32-ounce bag of frozen Southern Style diced hash browns with the 16 ounces of shredded sharp cheddar cheese.

Add the 10 1/2-ounce can of cream of mushroom soup, the 16-ounce container of sour cream, and the 3/4 cup of chopped yellow onion to the baking dish with the hash browns and cheese.

Using a large spoon or spatula, mix all the ingredients thoroughly in the baking dish until everything is well combined and the hash browns are evenly coated.

Melt the 4 tablespoons of butter, either in a microwave-safe bowl or a small saucepan over low heat.

Pour the melted butter evenly over the mixture in the baking dish.

Give the entire mixture one final good stir to ensure the melted butter is fully incorporated throughout the casserole.

Place the baking dish into the preheated 400°F oven and bake for approximately 45 minutes, or until the casserole is golden brown on top and bubbly around the edges.

Carefully remove the casserole from the oven and let it rest for a few minutes before serving. This allows it to set slightly and makes for easier serving.
