Location: Bifanas do Afonso, R. da Assunção 80, 1100-044 Lisboa, Portugal
Getting there: Rossio station
Classic Portuguese restaurant
Specialty: Famous bifanas (some kind of bread with any kind of mix)
Price range: $ (<10)
Pro tip: Recommended to try it, but there are large queues. Bifana with spicy pork good option
Recommended by @Pitufueros