INGREDIENTS
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1 12-ounce bag frozen broccoli florets
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2 tablespoons butter, divided
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1 onion, small diced
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2 tablespoons flour
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1 cup whole milk
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3 cups shredded cooked chicken breast
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6 ounces cheddar cheese, shredded
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1/2 cup Greek yogurt
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1/4 cup cream cheese
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1/4 cup sour cream
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Salt and pepper to taste