Pizza is traditionally circular, as its original octagonal shape caused patrons to simply stare at it and wait for the diner on their right to move. Pave your throat’s thoroughfare with cheese with today's Groupon: for $15, you get $30 worth of pizza, pasta, and drinks at Calda Pizzeria & Restaurant. This Groupon is valid at locations in Hicksville and Levittown.

Calda Pizzeria & Restaurant’s extensive menu of pizzas, piles of pasta, and burgers parades past gleaming tables flaunting time-tested Italian flavors. Diners can share 18-inch chicken-club pizzas ($21.95) decorated with produce, bacon, and ranch dressing, or guard their own personal-size eggplant-and-ricotta pies ($9.95) from herbivorous velociraptors. The Pizzeria burger ($9.95) merges the best of both worlds by draping a half-pound slab of Angus beef in homemade tomato sauce and a mantle of melted mozzarella. Linguine fruti di mare ($17.95) lets a school of mussels, calamari, and shrimp play Marco Polo in a pool of marinara sauce, and california penne with sun-dried tomatoes, grilled chicken, and broccoli spears ($12.95) lobs crisp fistfuls of veggies like a farmer on a Carnival float. The Levittown eatery features soft lighting and a row of burnt-sienna stools, and windows at the Hicksville establishment admit cascades of natural light.