Portillo’s is best known for its classic Chicago-style hot dogs, which are served on a poppy seed bun and topped with mustard, relish, chopped onions, sliced tomatoes, a pickle spear, sport peppers, and a dash of celery salt—never with ketchup. Another signature item is their Italian beef sandwich, which can be customized based on how much gravy you want, and whether you prefer sweet or hot peppers.

In addition to hot dogs and Italian beef, Portillo’s serves a range of char-grilled burgers made with fresh beef and customizable toppings. A customer favorite is the combo sandwich, which features both Italian beef and a grilled Italian sausage packed into one hearty roll. The menu also includes lighter fare like chopped salad, Caesar salad, and Greek salad, making it accessible to a variety of dietary preferences.
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For sides, Portillo’s offers crinkle-cut fries, cheese fries, onion rings, and homemade tamales. Chicken options are available too, including grilled and breaded chicken sandwiches, chicken tenders, and wraps. Vegetarian-friendly choices like the garden salad and veggie dog help round out the menu.