Mustard on deep dish? Bizarre. Does it work? Apparently, yes, according to the good folks at Portillo’s and Lou Malnati’s Pizzeria.

CHICAGO — Lou Malnati’s is offering free slices of its collaboration with Portillo’s Wednesday — hot dog deep dish pizza. Lou Malnati’s will operate a hot dog stand outside their Gold ...

The Chicago Dog Deep Dish pizza at Lou Malnati’s Pizzeria located at 805 S. State St. on the North Side on Wednesday, July 16, 2025. The limited edition item is a collaboration with Portillo’s ...

The limited time deep dish pizza contains all the seven toppings on a Chicago-style hot dog -- and we tried it.

Giordano's and Lou Malnati's are under new leadership with plans to expand well beyond Chicago, despite a sluggish pizza market and economic uncertainty.

Lou Malnati’s and Portillo’s pair up for Chicago Dog Deep Dish The Chicago Dog Deep Dish pizza at Lou Malnati’s Pizzeria located at 805 S. State St. on the North Side on Wednesday, July 16 ...

Two Chicago culinary icons, Lou Malnati’s and Portillo’s, have teamed up to serve Chicago-style hot dog deep-dish pizzas to the masses.

Lou Malnati’s is offering free slices of its collaboration with Portillo’s Wednesday — hot dog deep dish pizza.

Lou Malnati's and Portillo's are teaming up to launch a uniquely Chicago creation: the Chicago Dog Deep Dish Pizza. Debuting on National Hot Dog Day, the limited-time pizza combines Lou's buttery ...

On July 16, also known as National Hot Dog Day, Portillo's joined forces with Lou Malnati's, another Chicago staple, for the limited-time menu item—a Chicago Dog Deep Dish Pizza.