KANSAS CITY — Pizza chains are innovating outside the pizza box.

Pizza Hut is adding a spicy new flavor to its wings. New Nashville Hot Wings feature a cayenne pepper sauce with a blend of tangy, savory and sweet flavors. The wings may be ordered in traditional or bone-out styles.

“Pizza Hut is kicking the heat up with its hottest flavor yet, inspired by the mouthwatering, sweat-inducing Nashville-style spice and southern heat,” Pizza Hut said.

Papa John’s is adding a new appetizer: Jalapeño Popper Rolls. The baked rolls feature jalapeños and Philadelphia cream cheese wrapped in Papa John’s pizza dough. An order of eight rolls comes with ranch sauce for dipping.

“With our Jalapeño Popper Rolls, we are delivering our unique take on one of America’s classic appetizers,” said Paul Fabre, senior vice president of product innovation at Papa John’s. “Our guests can add this new tasty side to bring a little spice to pizza night.”

Marco’s Pizza is offering a new crustless pizza option with the debut of Specialty Pizza Bowls.

The All Meat Pizza Bowl includes pepperoni, ham, Italian sauce and bacon baked with original sauce and three sauces then topped with Romesan seasoning — a Parmesan-based seasoning with Italian herbs and spices.

The Deluxe Pizza Bowl contains pepperoni, Italian sausage, mushrooms, green peppers and onions baked with original sauce and three cheeses topped with Romesan seasoning.

The Garden Pizza Bowl features mushrooms, black olives, onions and sliced tomatoes bake with original sauce, three cheeses and feta all topped with Romesan seasoning and garlic sauce.

"The Specialty Pizza Bowl is everything you love about pizza minus the crust," said Steve Seyferth, senior vice president and chief experience officer for Marco's Pizza. "Adapting to the trends of our consumers is part of our DNA. While other brands have developed gluten-free or make-your-own products in the QSR space, this concept is bold and refreshing – it will transform the way people eat and enjoy their pizza."

View a slideshow of new menu items.