XXL Sandwiches & Frites on Avenida da Liberdade is a bold, modern street-food style concept in one of Lisbon's most prestigious avenues. It focuses on a simple but indulgent idea: a generously filled steak sandwich made with entrecôte, served in a large baguette and paired with crispy fries, bringing a high-end twist to classic comfort food. Set in a casual kiosk-style space, it's designed for quick, on-the-go eating while still delivering a rich, satisfying meal. Backed by the wider Grupo Olivier restaurant group, it reflects a trend towards more relaxed, urban dining formats in the city centre, making it a popular stop for a quick, hearty bite while exploring Lisbon's main boulevard.