It's really the batter that makes them anyway
Chris Howe of Riverside County has filed a federal class action lawsuit alleging McDonalds' mozzarella sticks are "Adulterated and misbranded." His beef? The stuff inside is not really "Mozzarella cheese" at all because it contains starch. Like that matters, right? Ref. Source 8w
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Mcdonalds' Mozzarella Sticks (Hover)