America's favorite comfort food gets its own week.
It's National Pizza Week and many of your favorite pizza joints are offering free pies, BOGO deals and more to celebrate.
Roughly 3 billion pizza pies are sold in the US each year, which works out to about 350 slices a second. The most popular topping? Pepperoni. It's the No. 1 choice for 64% of Americans, according to a YouGov poll.
See all the National Pizza Week deals below and check back frequently for updates.
For more on pizza, learn about pizza-making robots and pizza-delivering drones.
Through Saturday, Bertucci's is offering a buy one, get one free combo on its brick-oven pizza pies, available for dine-in or to-go customers who use promo code PIZZAWEEK.
Through Feb. 28, when you buy one large Casey's pizza you can get a second one at 40% off by using promo code BOGO.
Still hungry? A large-pizza purchase also entitles you to eight traditional or boneless wings for just $5.
Cicis is using National Pizza Week to launch its Early Week Deal: Mondays and Tuesdays through Feb. 14, the restaurant's endless pizza buffet is only $5.
"Amid rising costs and following the hectic holiday season, we're proud to offer a strong value proposition for our guests, ensuring everyone can enjoy a great meal at an affordable price," Cicis President Jeff Hetsel said in a statement.
You must have the online coupon on your phone when you order.
Domino's is offering a "mix and match" deal during National Pizza Week: Choose any two medium pizzas, pastas or other menu items for $7 each.
For carryout orders, get a one-topping pizza, a Dips & Twist combo or an eight-piece order of wings for $8.
Through Jan. 14, Donatos rewards members get double points on online orders.
Get $5 off any Extreme Pizza order of $25 or more through January 31 when you use promo code EB5OFF25.
Get a small two-topping pizza for just $7. Check out other current deals on Hungry Howie's website.
Get four Little Caesars pepperoni slices and eight Italian Cheese Stix with Crazy Sauce for $7. Or upgrade to Bacon or Jalapeno Stix for just a dollar more.
Through Jan. 14, Marco's is offering two medium one-topping pizzas, Cheezy Bread and a two-liter bottle of Pepsi for $22 when using promo code HD189.
Marco's diners can also get 30% off menu-priced pizzas using promo code GREAT30 through Jan. 20 or take home a large Pepperoni Magnifico for just $10 with discount code PEPMAG.
Get an Epic Stuff Crust Pizza from Papa Johns with a topping of your choice for just $13.99.
Through Jan. 15, Pasqually's is offering a BOGO pizza deal: Buy one special pizza and get a free cheese pie when you use offer code FreeCheesePZ.
There are about 20 independently owned Pasqually's locations in Alabama, Georgia, Indiana, Kentucky, Mississippi and Ohio.
With Peter Piper's Double Up deal, you can get two large one-topping pizzas for $28.
Pieology is celebrating National Pizza Week with a free Premium Crust upgrade on in-store and online orders for users of its Pie Life Rewards app.
In-store guests can also enjoy a Signature or three-topping pizza with a beverage for $10.
The new Pizza Hut Melts -- two slices of Thin 'N Crispy crust pizza, folded over and sprinkled with parmesan cheese and oregano -- are just $7 for a limited time.
On Jan. 12, get an individual Detroit-style cheese or pepperoni pizza from Uno's for $6.