The nearest pub is surely the oddly named "Pennycomequick" just 200mtrs west of the station, on the roundabout of Alma Road and Stuart Road. (Turn right on exiting the station and turn first right again up the busy Alma Road and carry on under the railway bridge. Its on the next junction).
There's a huge range of bars, cafes and restaurants on the popular Mutley Plain, about 1km in the opposite direction - eastwards out of the station, walk over the lines and walk alongside the track until you get there - you'll see Mutley Plain ahead of you as soon as you cross the tracks.