I grew up in Timonium and have tried all the local pizza shops. Maria's is by far the best and I think it's because of the hand tossed crust and great ingredients. Not to mention the restaurant(including the bathroom) is always very clean. Also, try the cheese steak subs. They're great too. My family has a weekly pizza and movie night and we always order Maria's.
Pros: great food, nice people, clean shop
Cons: occasionally inconsistent
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