Cerro San Cristobal

At the foot hill of san cerro there plenty of nice restaurants spread around d in the adjoining streets.
As well it is perhaps worth it not getting a round trip but rather going one way see the zoo if you like and stop at the pools, when getting to the final stop with the “gondolas’” keep walking towards the river on any of the streets (there pretty nice looking houses) when hitting the river turn a bit left on Av. Santa Maria Then cross over the river to get in to Avenida Sueca where one restaurant next to each other line the street.
Lot of them have Happy hour and cater for all sorts of different taste
And after a few drinks or some good food it is just a few steps away form the Subway which is with 3 read diamonds in a circle marked (los Liones station)

If you have a half day or so, visit Cerro San Cristobal. You can take a rad funicular up multiple stops of the mountain. Visit a zoo, go swimming at their many public pools (can get really crowded in the Summer months- but a great way to cool off and chill with locals), see the giant statue of La Virgen, and lots more. Highly recommended if you're stuck in the city and just want to cool off at the pools or lay out and get a tan on the grassy areas. If you reach the top of the mountain- a great place to see a fantastic view of Santiago. Oh!- and make sure to try a favorite Chilean dessert while you're there- Mote con huesillo...it looks weird, but is sooooo good!