"This isn’t your usual green bean casserole. Loaded with cheese and sour cream, it will be your new favorite!..."
INGREDIENTS
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1 onion, sliced
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1 tablespoon fresh parsley, snipped
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3 tablespoons butter, divided
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2 tablespoons all-purpose flour
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1/2 teaspoon lemon zest
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1/2 teaspoon salt
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1/8 teaspoon pepper
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1/2 cup milk
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8-oz. container sour cream
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16-oz. pkg. frozen French-style green beans, cooked
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1/2 cup shredded Cheddar cheese
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1/4 cup fresh bread crumbs