Billis offers a cuisine focused on grilled meats and gourmet burgers, featuring select cuts and specialties such as Maremmana and Cinta Senese burgers. A selection of dry-aged meats is also available, which defines the restaurant's identity and defines its gastronomic signature. The atmosphere is informal and welcoming, with a modern and straightforward feel, suitable for both quick lunches and more relaxed dinners. The menu is designed to showcase intense flavors and grilled dishes, maintaining a simple yet refined style. Among the most popular aspects are the emphasis on meat, the variety of burgers, and the attention to quality ingredients. The restaurant stands out for its clear and specialized offerings, geared towards those seeking recognizable and well-defined meat cuisine.