The Underground Pizza: Deep-Dish and a Weekly Password Deal

Tucked into a corner of Promenade Plaza next to Planet Fitness, The Underground Pizza leans into its hidden-in-plain-sight location. The restaurant has been called out in The Palm Beach Post as a Yelp pick for Palm Beach County's best deep-dish pizza, and the menu is built around that reputation, alongside a hand-tossed thin-crust option for anyone who wants a lighter slice.

An East Coast Deep-Dish Built Big

The signature item is a large, roughly 4-pound East Coast-style deep-dish pizza, a format that sets it apart from the thin-crust pizzerias common in the area. Beyond pizza, the kitchen turns out wings, garlic bread, house-dressed salads, meatballs in red sauce, a Burrata appetizer, and cheesecake for dessert, with vegan-friendly and gluten-free options available for diners who need them.

A Sports Bar Vibe With a Weekly Twist

The dining room mixes dine-in and outdoor seating with ESPN sports packages and a bar, and the restaurant describes its own atmosphere as having "cool, groovy vibes" with a curated playlist. Saturday evenings bring live acoustic music, and the shop runs a running promotion where a password that changes weekly unlocks a discounted large thin-crust pepperoni pizza — a small, recurring reason for regulars to keep checking back.

Good to Know

The Underground Pizza is located at 9920 FL A1A Alt unit 815, Palm Beach Gardens, FL 33410. It's a good fit for a casual pizza night, whether that means dining in for the game or ordering delivery at home.