Lou Malnati’s and Portillo’s Unleash a Hot Dog Deep-Dish Pizzaon Chicago | Eater Chicago
"The hot-dog chain supplied its hot dog slices for the Chicago Dog Deep-Dish collaboration and is a primary reason the pie explicitly eschews ketchup in favor of traditional Chicago-dog toppers (sport peppers, pickles, white onions, celery salt, green relish, and yellow mustard). Once a local chain, it is now owned by an East Coast investor group. The company previously teamed with the pizza chain on a 2022 Italian beef deep-dish that was sold online and shipped frozen." - Jeffy Mai
