½ (8 ounce) package cream cheese, softened, or more as needed
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½ cup chopped green onions
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2 cloves garlic, minced
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½ teaspoon salt, or to taste
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1 (16 ounce) package frozen hash brown potatoes
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½ cup grated Parmesan cheese, or more to taste
Instructions
Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch casserole dish.
Mix Cheddar cheese, potato soup, sour cream, cream cheese, green onions, garlic, and salt together in a large bowl. Fold potatoes into mixture; pour into the prepared casserole dish. Top with Parmesan cheese.
Bake in the preheated oven until bubbling and cheese is golden brown, about 1 hour.