Costello's Pizzeria & Subs Becomes Florissant's Newest Neighborhood Favorite

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In an industry where new restaurants often struggle to gain traction, Costello's Pizzeria & Subs in Florissant, Missouri has done something rare - it has made an immediate impact. Located in the historic Old Town Florissant district, the locally-owned pizzeria opened in 2024 and has already built a loyal following thanks to its fresh, flavorful pizza, delicious subs, and welcoming neighborhood vibe.

Why it matters

Costello's success represents an important story in the restaurant industry - the ability for a well-executed, community-focused concept to thrive even in a crowded market dominated by large chains. Its strong early performance shows there is still demand for local, independent restaurants that prioritize quality, value, and connection to their community.

The details

Costello's menu features a balance of classic pizza favorites and creative specialty pies, all made with fresh, house-made dough and a bold, balanced sauce. The sub menu is also a standout, with hearty options like meatball, chicken parmesan, and Italian beef. Sides like toasted ravioli and garlic bread round out the offering. The restaurant's pricing is competitive without cutting corners, allowing customers to feel they are getting great value.

• Costello's Pizzeria & Subs opened in the summer of 2024.
• As of March 22, 2026, the restaurant has accumulated overwhelmingly positive online reviews.

What they’re saying

What’s next

Costello's will need to maintain its high standards of food quality and service as the restaurant continues to grow in popularity and customer volume.