"This unbelievable casserole is the perfect comfort food to round off a busy workday...."
INGREDIENTS
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4 to 6 russet potatoes
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2 tablespoons vegetable oil
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1 cup shredded sharp cheddar cheese
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1 cup shredded mild cheddar cheese
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10 ounces bacon
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5 tablespoons butter
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1 cup sour cream
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1 cup whole milk
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½ teaspoon salt (plus more, to taste)
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½ teaspoon pepper
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1 egg, beaten
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½ bunch scallions, chopped
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1 tablespoon butter, melted
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2 ounces breadcrumbs