The Hamburger at Portillo’s is a typical American dish. It has a juicy beef patty that is grilled over an open flame and served on a soft, toasted bread. This burger is simple yet tasty. It has a strong beef flavor and you can add fresh toppings like lettuce, tomato, onions, pickles, ketchup, and mustard. It’s a popular choice for guests who want a simple, basic burger.