Mercato di Testaccio

Un mercado cubierto moderno con un grupo de puestos de comida que preparan algunas de las mejores comidas económicas de Roma — supplì, trapizzino, pasta fresca, y vendedores de productos frescos que llevan allí generaciones.

The market closes mid-afternoon and doesn't open Sundays, so this is a morning-to-early-afternoon stop rather than a dinner option. Late morning through early afternoon is the best window for the food stalls specifically; come earlier if you're there mainly to buy produce rather than eat.