Druids Cafe is located in the historic Druid's House building on Swanston Street, not far from Melbourne Central and RMIT University. I often walk past it when I can't get a tram.
Nothing about this place is super fancy and there's nothing wrong with that. You'll get good value for money at Druid's – I had a tomato toasted sandwich for only $3. Small coffees are also $3 (they use Dimattina Coffee and tend to be generous with the chocolate powder on top) and they serve breakfast until 3pm, which is kind of cool.