Spinach Dip Made with Greek Yogurt

yogurt (cultured pasteurized grade a whole milk, cream, condensed skim milk, pectin, salt, spinach, water, onion, contains 2% or less of: green onion, salt, lactic acid, onion and garlic powder, sugar, vinegar, celery, yeast extract, xanthan gum, natural flavor, sodium benzoate, potassium sorbate