Costello's Pizzeria & Subs

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1060 Saint Catherine St
Florissant, MO 63031
+1 (314) 254-7531

Costello's Pizzeria & Subs is a cozy eatery located in Florissant MO offering a delicious menu that features a variety of mouthwatering pizzas and hearty subs. With a warm and welcoming atmosphere it's the perfect spot for a casual meal with family and friends. Whether you’re craving a classic pepperoni pizza or a fresh sub sandwich Costello's provides tasty options that satisfy any appetite.

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5.06 reviews
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Erica B.
9/6/2025

If you haven't heard of Costello's then I hope you do when you see this. Nestled in Old town Florissant across the street from Fritz's ice creamery, according to the owner, they've been open for...

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Judy R.
9/15/2025

Excellent!! Ordering online of two meatball sandwiches was easy. When I arrived I was greeted promptly, warmly, and thanked for my order. The bread, sauce and meatballs were outstanding -...

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Erika H.
10/9/2025

Thumbs up for sure! Glad I found out about Costello's because I absolutely love pizza. They were very polite and courteous from the time I placed my order over phone to pickup. I ordered the...

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Jennifer F.
4/20/2025

Hubby picked up some food on Friday. The pizza was delicious and decently priced. My husband had a meatball sandwich on garlic cheese bread which was amazing. I may get that next time. Their...

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Candace A.
8/7/2025

It's nice to have a little bit of The Hill in Old Town Florissant. Pizza was excellent, ingredients were fresh including the 'made daily' crust. Service was delivered with a smile and sincerity....

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United States›Missouri›Florissant›Costello's Pizzeria & Subs