Santiponce

A brief bus ride away from Seville, on the M-172 (from Plaza de Armas Bus Station).
You can also catch taxis from Seville, however the driver will probably charge you an exorbitant fee for crossing the Seville city limits.

Itálica, a partially excavated Roman city. Most of it is lost under the village of Santiponce, but several streets and the footings of houses and public buildings with mosaic tiled floors can be seen.
The highlight is one of the largest known Roman amphitheatres with seats for 25,000.
Italica receives fewer visitors than many European ruins of similar archaeological value, and is well worth the quick trip from Seville. Archaeological work on the city is ongoing.

A good deal is El Ventorrillo Canario, just in front of the gates of the Italica premises. Try roasted meat and stews.